While tuning it can happen that higher order overtones in the drum sound disturb your pitch readings.

This usually happens when these higher order overtones interfere with the lug pitch frequency you wish to detect.

Activating the ‘FOCUS MODE’ once a lug pitch is successfully detected, can avoid this from happening, for the hits to follow. With the focus mode activated, any interference of higher order overtones is prevented and your readings will be back to normal.

Note:

When it’s difficult to get a correct lug pitch reading, it can be useful to perform following tuning technique:

Simply place your finger or a cymbal washer on the drumhead, at approx. 5 cm or 2” from the bearing edge and at 90° from the impact location of the stick. (EG. If you hit the drum near a lug located at 12 O’Clock (or North), then place the cymbal washer or your finger at 90° left or right, thus at 3 O'clock (or East) or at 9 O'clock (or West).)

This technique will mute higher order overtones for that lug enough to ensure they won’t interfere with the readings anymore and it will provide you a perfect lug pitch reading.

While tuning it can happen that higher order overtones in the drum sound disturb your pitch readings.

While tuning it can happen that higher order overtones in the drum sound disturb your pitch readings.

Activating the ‘FOCUS MODE’ once a lug pitch is successfully detected, can avoid this from happening, for the hits to follow. With the focus mode activated, any interference of higher order overtones is prevented and your readings will be back to normal.

Note:

When it’s difficult to get a correct lug pitch reading, it can be useful to perform following tuning technique:

Simply place your finger or a cymbal washer on the drumhead, at approx. 5 cm or 2” from the bearing edge and at 90° from the impact location of the stick. (EG. If you hit the drum near a lug located at 12 O’Clock (or North), then place the cymbal washer or your finger at 90° left or right, thus at 3 O'clock (or East) or at 9 O'clock (or West).)

This technique will mute higher order overtones for that lug enough to ensure they won’t interfere with the readings anymore and it will provide you a perfect lug pitch reading.

Go to the shop section in the ‘even more’ screen.

Based upon your location and the availability, all items available for purchase are shown in the shop, neatly ordered in categories.

Shop till you drop and add any items you wish to purchase to your cart and proceed to checkout.

Just like with any other on-line shop, you’ll have to provide us with your address and shipment details. Shipping cost will be updated and is included in the price shown on your bill. Credit cards and Paypal are accepted as payment means.

We’ll ship the items to you, as soon as your payment is received.

After payment, you’ll receive an order confirmation, an invoice and tracking number(s) of your parcel(s) per mail. Once your order is placed and payed, you can track its shipment status from within the app too.

Your order history is kept in your profile so you can always consult it later on and print/mail invoices if needed.

Yes. The ambient setting allows you to adapt the sensitivity of the microphone so drum hits can be detected without interference from any environment sounds.

Of course it’s always best to tune in a more silent environment, to ensure proper pitch readings, but Drumtune PRO has been designed to still detect drum pitches in noisy environments...

Just set the sensitivity switch to a setting above the indicated max sound level in the real-time noise tracking graph. A setting just above ambient noise level will allow you to detect (gentle) hits on your drum head, without any false hit detections coming from events in the ambient sound.

To ensure consistent pitch readings, it is very important to hit the drumhead in a consistent manner.

Remember to always hit with a gently with a constant force, and always aim for the same spot while tuning your lug.

If you’re not happy with the App or how it performs, please take a moment to contact support and let us know what’s wrong. Your feedback, positive or negative, is useful to us and much appreciated!

Within our potential, we wish to make sure you have the best possible experience with Drumtune PRO. Perhaps we can help you solve any possible issue, or perhaps we can improve your app.

If you wish to claim a refund for your purchase, then it is required to request it from the App Store, following the procedure as described here:

http://www.imore.com/how-to-get-refund-itunes-app-store

If you did find a bug, then it’s largely valued if you contact support and let us know what’s wrong.

To report a bug, please shake your device. This will open our built-in bug reporter. Now, you can easily send us a mail with a screen shot and little description of the bug, so we can understand it better, to solve it better. We will contact you after your report is received.

Alternatively, it’s possible to go to the ‘Even More’ screen, and write us an email from within the contact support section. You can also drop us a line on our FB-page, via private messaging.

We do our best to follow-up as fast as possible. Your feedback, positive or negative, is useful to us and much appreciated!

We wish to solve any discovered bugs, in order to improve your app and make sure that you have the best possible experience with Drumtune PRO.

Once you're signed-up to the app, you are a member of the drummer community.

As a member you can expand the functionality of Drumtune PRO with free expansion packs. Simply download the free expansion packs, enjoy free backup of your personal tuning presets and settings. Later on we’ll expand functionality to share tuning presets with other members and you’ll be able to benefit from member-only deals in our drummer-community shop.

Simply follow the Forgot Password/Login link and we’ll send you an email to your subscription address to reset your password and login information.

Yes, besides instruction videos, tutorials and a FAQ/troubleshooting library, we have an extended manual. The manual is in English only.

You can access the manual from within Drumtune PRO from our ‘Even more’ screen here.

Note:

When you access the manual for the very first time you need to have an internet connection on your mobile device in order to download it first. Once downloaded it is stored on your device, so you can always access it later on, even when you're not connected to the web. If an update is available it will automatically redownload if a web-connection is present.

Alternatively you can:

Send an email here to get a .pdf copy of the manual it mailed to you.

Download the manual directly from our server

You can access these tutorials or videos from within Drumtune PRO from our ‘Even more’ screen here.

Yes, besides a FAQ/troubleshooting library and an extended manual, we’ll make instructional videos and tutorials available over time... Currently there also are third party videos or videos from earlier releases of the app available.

You can access these tutorials or videos from within Drumtune PRO from our ‘Even more’ screen here.

Note:

To be able to see these tutorials or videos you need to have an active internet connection on your mobile device.

Alternatively you can:

Visit our YouTube Channel or Facebook page directly to watch any tutorials or instruction videos.

Personal account

Signing in is optional. Drumtune PRO comes fully functional from the App Store.

To be able to install our free expansion packs, you must join the drummer community. We won’t spam you!

Sign-up to join a worldwide drummer community and receive a lot of extra content for FREE, made available from the drummer community cloud.

Once you signed up, you’ll be a member of the drummer community and have access to your personal account.

To access your personal account and update your account details, or your profile picture, press the tab at the top of the list.

If you have an account, you can sign-in and have access to all benefits the drummer community cloud, but of course you can also logout from it without loosing any installed functionality of the app.

Sign-in

When you are signed-in to the drummer community of Drumtune PRO, all your personal settings, updates, kits, tuning presets, purchases and so on, will be saved automatically so you can always restore your data from our drummer community cloud. Whenever you change device, use someone else’s device even if you switch from an iOS to an Android device, simply log-in and all your data will be accessible via your new device! It’s a worry-free back-up!

As a signed-in member of the drummer community, you’ll receive free access to a range of expansion packs, member exclusive offers, etc… It’s not only worry-free, it’s free!

Sign-in happens automatically when you use Drumtune PRO, once you’re signed-up.

To be able to make purchases from our shop (and enjoy from our member-only deals), you need to be a member of the drummer community and signed-in.

You can logout whenever you like.

Log-out

When you’re signed out, then no connection is made with the drummer community cloud. When not connected with the drummer community cloud neither backup of personal settings and tuning presets, nor downloads of expansion packs, or updates to them, would be available.

To get the look and feel right when tuning your drum, pick the drum heads & sound control item that are mounted on your drum.

By default there’s a limited collection of drum heads, and sound control items visualized in Drumtune PRO.

You have to install the expansion packs to get a full fledged library of drum heads and sound controls.

The free expansion packs contain (whenever possible) the full range of sound control accessories and drum heads available from the most significant drum head manufacturers, all neatly arranged per brand and sorted per drum type. We update the packs on regular basis.

The free expansion packs are available to members of the drummer community only. Sign-up to join the drummer community and get to download the FREE expansion packs full of sound control items, sorted per brand. Once the expansion packs are installed, you’ll have access to the manufacturer's full product range. (Updated regularly.)

To achieve a balanced sound, it is important to tune all lugs of a drum head to the same lug tone.

This tuning step where you match the tone of all lug tones to the same tone, is also called ‘clearing’.

There’s no single way to tune a drum properly!

However, the following tuning patterns provide a good approach to get efficient results when preparing your drums before or seating a drum head on its bearing edge.

Select a tuning pattern that corresponds with the amount of lugs per drum head of your drum from the list.

Tune the tensioning bolts following the sequence as indicated by the selected tuning pattern.

Note:

Each pattern corresponds to a star shape that indicates the order in which the tensioning bolts of your drum should be tuned to efficiently achieve a uniform tensioning of the drum head.

Tuning the tensioning bolts in the sequence indicated by the pattern, helps to keep your drum head properly seated (level and centered) on the drum shell.

Seating of the drum head is referring to the step, wherein you make sure that there’s a perfect contact with the drumhead and your drum’s bearing edge, when you install a drum head on your drum.

To obtain a all-round contact between the drum head and the bearing edge of your drum when installing a drum head, place the head well centered on the drum’s bearing edge and rotate it a couple of times until you feel that the contact with the bearing edge is good and the flesh hoop of the drum head is level with the bearing edge of the drum.

Next install the counter hoop or rim on the drum head and ensure that it is properly centered with the drum’s shell. Make sure that the counter hoop and the head remain level to the bearing edge.

Now it’s best to finger tighten the lugs carefully, before using a drum key.

Start finger tightening the tensioning bolts per pair of opposing bolts, to ease keeping drum head level and well-centered in place on the drum. Keep on following the advised sequence of the tuning pattern for your drum, even when working per lug-pair.

During this finger tightening step, make sure that both counter hoop and drum head remain level and centered with the bearing edge during the process. Make corrections if not level or not centered.

When the head is sufficiently tightened it will just become responsive and start to sing. Now give the tensioning bolts another ½ with 1 or two drum keys, in the order of the pattern as indicated.

When the head is sufficiently tightened it will just become responsive and just start to sing a tad bit. Around this time the wrinkles should start to disappear from the head.

Look at the light reflection on the head. Once all wrinkles are disappeared, the drum head is at the right tension to push it with your first or the palm of your hands downwards, a couple of times (like CPR). This pushing will ensure that the heads get better centered and that the contact with the bearing edge is established uniformly.

Finger tighten again and repeat if required.Once, the above steps are completed to satisfaction, the head will be properly seated.

Now you can start tuning your drum head, using a drum key.

You also use two drum keys simultaneously, each on opposing lugs, nonetheless when seating a drum head on a drum with two keys at once, it’s important to still follow the correct tuning pattern, regardless if you use one or two drum keys.

If you are within +/- 4 Hz from your target pitch, you could switch to the ‘lug tuner’ to fine-tune and clear all lugs to perfection!

To ensure proper seating during tuning, it helps to press the center of the drum head with your fist or palm of the hand.

Push the head vertically downward, release and tighten the bolts following the cross pattern again. This will redistribute the tension over the head and contribute to an even tensioning of the head. Make sure that both counter hoop and drum head remain level and centered with the bearing edge during the tuning process. Make corrections if not level or not centered. Repeat the above steps until the head is properly tuned

Pressing ensures that the bearing edge contact is uniform, resulting in an even tension distribution over the head.

It also helps to ensure that the tuning is less prone to variations after playing a while, and so could be kept longer.

Note:

Never mind any possible cracking sounds coming from your drumhead when seating new heads. The cracking is caused by the glue inside the heads’ flesh hoop, which is adjusting itself to the tension changes of the head.

It basically indicates that the drum head is seating itself on the bearing edge of your drum.

When all lugs on a drum head are tuned to the same lug tone, nearby the lugs the head vibrates at the same speed when struck in the center. This produces a uniform range of overtones around the full circumference of the head.

In other words, if all lugs are cleared, your drum produces a more defined sound with a clear timbre. A well-cleared drum head has a more a prominent fundamental tone and fewer overtones in its sound palette. This gives a well defined ton and a smooth, harmonious overall sound.

The benefits are best audible during the decay of the sustain. It’s great for miking, recording and it is easier on the ears of your audience, as it sounds more melodic and leaves more ‘room’ in your drum sound for the other members of the band.

Check the all lug pitches with our Drumtune PRO lug tuner first.

Once you have a complete overview of their differences, select the lug with the biggest positive difference (+) by pressing the next button until it reaches this lug, or by tapping on it directly, and tune it down in a small step (⅛ to ¼ turns of the drum key).

Next, select the lug with the biggest negative difference (-) by pressing the next button until it reaches this lug, or by tapping on it directly, and tune it up in a small step ( ⅛ to ¼ turns of the drum key).

Press the center of the head with your fist a couple of times. This will redistribute Next, recheck all pitches and repeat until all lugs are cleared.

Note:

Try not to tune any individual bolt in steps bigger than 2Hz, before checking all other lug pitches again.

• If you tune the pitch of a single tensioning bolt up, all pitches of the other bolts will go up too, as the tension increase redistributes over the whole head.
• If you tune the pitch of a single tensioning bolt down, all pîtches of the other bolts will go down too, as the tension decrease redistributes over the whole head.
• Flanking tensioning bolts and opposing tensioning bolts are most affected by the changes.

The pitch of a drum sound refers to the frequency or note, corresponding with the fundamental tone of a drum.

Note:

The pitch of the attack of a drum is affected by impact strength. The harder the impact the higher the tone of the impact will sound.

Depending the individual drum head tunings, the pitch of the fundamental could also feature a pitch bend, like a drop or rise in pitch during the decay of the drum’s sustain.

Tuning the lug pitch of the resonant head to match the pitch of the drum shell itself, can help you to find the sweet spot in the tuning range of your drum.

Thetimbreof a drum sound refers to the overall sound pallette, corresponding with the fundamental tone and the relative proportions of all overtones of a drum.

Note:

The timbre is reflecting the ‘color of a sound’. A difference in timbre allows us to recognize different instruments playing the same notes.

For example a D played on a piano sounds different to a D played on a trumpet or the same D played on a guitar or drum.This is due to the fact that for different instruments, the same fundamentals are completed with proportionally different overtones. The different constructions and materials of the instruments simply cause to generate proportionally different overtones, or a different timbre, when played at the same pitch.

Imagine the exact same song played on both, an acoustic guitar, and on an electric guitar. Despite of the fact the exact same notes would have been played on both guitars, wouldn’t both songs sound much different?

Both guitars have a completely different timbre, aka acoustic ‘color’ or ‘feel’. This means that both songs are ‘colored’ differently, by the difference in timbre or overtones that is generated by both different instruments, causing the exact same songs to have a completely different ‘feel’. Our ears & brains are very good at perceiving these differences in timbre!

While different heads may be tuned to the same pitch, or fundamental tone, they will all have a different sound color or acoustic feel, despite of being perfectly tuned to the exact same fundamental tone.

Different drum head types feature a different construction and materials. (Think: single ply heads vs double ply heads, and coated heads, vs clear heads, thin head plies vs thick heads plies etc…)

The materials used, and how the head is constructed, affect all aspects of the drum head’s sound.

These differences in materials used and the overall head’s construction, affect the attack, the sustain duration and timbre of the drum head simultaneously....

So, different head types will display timbre differences, meanwhile also featuring different audibilities of the attack and also the drum heads’ sustain at any given tuning.

The proportional differences of the present overtones in the timbre are affected by both ply thickness, material mass, stiffness etc.

To be able to choose well, it’s important to check the drum heads manufacturer’s sound description and guidelines; but in general these underlying rules of physics apply;

• The heavier a head’s ply, the darker its timbre.
• The more plies in a head, the darker and drier its timbre, with more effect on sustain decay duration.
• The thinner and lighter a head the more easily it generates overtones and the higher, ‘brighter and wetter’ its timbre / sound palette, but the harder it is to properly clear it so it sings ‘in tune’ with itself.
• The thicker and heavier a head the less easily it generates overtones and the lower, ‘darker and dryer’ its timbre / sound palette, and the easier it is to properly clear it so it sings ‘in tune’ with itself.
• A center dot, generates a drier, lower fundamental and a more focused attack.
• Rings near the bearing edge, generates a drier timbre, with less effect on sustain decay duration.
• The surface finish of the head affects the timbre and sustain as well. Coated heads and rougher heads (frosted, satin, fiberskyn) are dryer and have a slightly shorter sustain. Clear heads and shiny polished heads are wetter and have a longer sustain.

The biggest part of the drum sound, comes from the quality of the drum heads and their tuning.

Luckily as a drummer you can influence this aspect by installing other heads or applying different tunings.

To bring you closer to the sound you need, it’s always a good thing to choose a quality drum head that suits your sound-style and then start tuning it properly.

• A professional drum kit, with cheap entry-level heads may sound crappy.
• A cheap, entry-level drum kit with professional drum heads installed may easily sound great!
• A well tuned kit sounds way better than a crappy tuned kit.
• Professional heads can be tuned properly to a great sound, cheap entry-level drum heads generally still sound really bad even when tuned properly.
• A worn-out, spent drum head will always sound dull, with very few overtones and a reduced sustain...

When installing quality heads, it’s best to adapt the head thickness of your batter head and resonant head to your playing style.

• Thin heads as resonant heads, create a drum with a sustain that is responsive and well audible when playing on low volumes.
• Thicker heads as resonant heads, may well function if you like a very dry sound, but generally create a sustain that is not so responsive and less audible when playing on low volumes. In higher volume situations, they may work well.
• Thinner batter heads can sound ‘full bodied’, when played at low volume and can sound ‘thin’, when played at higher volume.
• Thicker batter heads sound can sound ‘tubby’, when played at lower volumes and can.

Finally, it’s also important to to adapt the head thickness to your tuning style, or vice versa.

• Tuning any heads too high in tension, would ‘choke’ the drum sound. Thicker heads, are less easily choked on higher tunings, and the other way round for thinner heads.
• Tuning any heads too low in tension, would ‘deaden’ the drum sound. Thinner heads are less easily deadened on lower tunings, and the other way round for thicker heads.
• Ensure your drum is tuned well… :)

If none of these help, changing the drum or redoing the bearing edges would be a way to go!

The batter head and resonant head don’t have to be tuned to the same lug tone.

Tuning both drum heads to a different lug tone enables you to change the drum’s sustain, attack, and pitch bend up to your personal taste!

To find your signature sound, just experiment with the lug tones of both heads!

Keep the following rules of thumb in mind:

• the bigger the distance between the lug tones of both drum heads, the shorter the sustain of your drum.
• if the batter head is tuned higher than the resonant head, there will be more attack in the sound, and often a upward pitch bend in the decay of the sustain of the drum. Note that the attack is higher pitched due to the higher batter head tension, so right after the attack there will be a downward pitch bend, but it rises in the sustain. Also there’s a faster stick response and rebound, and it’s easier to hear the definition and articulation of fast, complex fills.
• if the resonant head is tuned higher than the batter head, there will be less attack in the sound and often an downward pitch bend. There’s a less defined stick response and slower bounce-back, and you’ll have a more centered, rounded sound.

Note:

The bigger the tonal difference between both heads, the stronger these effects will be.

Unlike with a guitar, where a standardized EADGBE-note tuning for the strings applies for most situations, with drums it’s not required to tune the different drums of your kit to specific standardized notes.

You’re free to choose any notes you like

It’s always a good choice to tune your drum to chromatic notes when you play with other melodic instruments in a band. This will ensure that your fundamental tone is in tune with the other instruments. However, since a drum produces an almost infinite amount of pitches in its timbre (overtone palette), it can never really sound 100% out of tune with other instruments, when properly cleared.

Therefore, it even ain’t required to tune your drum to a note on the chromatic scale at all!

You could well choose any frequency between the notes on a chromatic scale to tune your drums to.

And if you do so, it is possible to tune the different drums to a specific interval, by respecting the frequency ratios of the interval.

There’s no ‘single right way’ to tune a drum kit!

Whether to tune your drums to an interval or not, is a personal choice.

Toms (& possibly kick)

You may find it useful to tune all fundamental tones of your drums to match chromatic notes.

This would result in a melodic drum kit sound, with well balanced tones which are in harmony with the other instruments of your band.

To achieve an optimal melodic effect, you may want to tune all toms of your kit to the same tonal interval.

When playing fills on the kit, from the smaller tom(s) over the bigger tom(s) and the floor tom(s) to the kick, a tuning in the same intervals will generate a sound with a perfectly balanced gradual shift in pitch.

Snare drum

Snare drums are tuned usually higher

You may want to tune the snare drum (and if desired also the kick) to a different interval distance to suit your style.

A handy trick may be to tune your snare to an interval of the kick drum tone, but in another octave. Since you play both the kick and the snare often, they would sound great together.

A perfectly tuned kit with a killer sound in your rehearsal room, may very well sound awkward when you take it to the bar for your gig, or the studio for a recording.

Always try to tune your drum kit so it sounds good in the environment you want to play it in. Hereto it’s best to tune your drum inside the room, at the spot where you’ll be playing. Try to “feel” with your ears, how to meet the environments requirements.

The more experience and skill you have, the easier it gets. But hey, we all start from the beginning. So don’t be afraid to play with the relative tensions of both heads, and the pitch of the fundamental until all sounds right! If you can’t find the right tone, it’s always possible to load your previous tuning preset and go back to your original tuning.

Sound perception changes from day to day, not only are acoustics depending of the materials present in a room and of its geometry; they are also depending of the ambient temperature and humidity too…

Retune if required.

Sometimes, if required, it’s also possible to change the sound color of the environment by changing the objects and materials inside a room by using a huge drum carpet for example.

Also the placement of your kit is critical, with regards to sound reflections and their effect on the perceived timbre. (In a corner / before a window/ on a wooden stage)

While tuning it can happen that higher order overtones in the drum sound disturb your pitch readings.

This usually happens when these higher order overtones interfere with the lug pitch frequency you wish to detect.

Activating the ‘FOCUS MODE’ once a lug pitch is successfully detected, can avoid this from happening, for the hits to follow. With the focus mode activated, any interference of higher order overtones is prevented and your readings will be back to normal.

Note:

When it’s difficult to get a correct lug pitch reading, it can be useful to perform following tuning technique:

Simply place your finger or a cymbal washer on the drumhead, at approx. 5 cm or 2” from the bearing edge and at 90° from the impact location of the stick. (EG. If you hit the drum near a lug located at 12 O’Clock (or North), then place the cymbal washer or your finger at 90° left or right, thus at 3 O'clock (or East) or at 9 O'clock (or West).)

This technique will mute higher order overtones for that lug enough to ensure they won’t interfere with the readings anymore and it will provide you a perfect lug pitch reading.

Please check your microphone settings in ‘SETTINGS’ of your iOS Device.

Make sure that microphone access is allowed for Drumtune PRO.

Reboot the app. Reboot your iPhone. Try again.

If not solved, delete and reinstall the app from the App Store. Click ’Allow microphone access’ when asked for when opening the app.

If not solved, please contact us via mail support here.

Reboot the app. Reboot your iPhone. Try again.

If not solved, delete and reinstall the app from the App Store. (Click ’Allow microphone access’ when asked for when opening the app.)

If not solved, then most probably you did find a bug!

It’s largely valued if you contact support and let us know what’s wrong, so we can solve it for you.

To report a bug, please shake your device. This will open our built-in bug reporter. Now, you can easily send us a mail with a screenshot and little description of the bug, so we can understand it better, to solve it better. We will contact you after your report is received.

Alternatively, it’s possible to go to the ‘Even More’ screen, and write us an email from within the contact support section. You can also drop us a line on our FB-page, via private messaging.

We do our best to follow-up as fast as possible. Your feedback, positive or negative, is useful to us and much appreciated!

We wish to solve any discovered bugs, in order to improve your app and make sure that you have the best possible experience with Drumtune PRO.

Reboot the app. Reboot your iPhone. Try again.

If not solved, delete and reinstall the app from the App Store. (Click ’Allow microphone access’ when asked for when opening the app.)

If not solved, then most probably you did find a bug!

It’s largely valued if you contact support and let us know what’s wrong, so we can solve it for you.

To report a bug, please shake your device. This will open our built-in bug reporter. Now, you can easily send us a mail with a screenshot and little description of the bug, so we can understand it better, to solve it better. We will contact you after your report is received.

Alternatively, it’s possible to go to the ‘Even More’ screen, and write us an email from within the contact support section. You can also drop us a line on our FB-page, via private messaging.

We do our best to follow-up as fast as possible. Your feedback, positive or negative, is useful to us and much appreciated!

We wish to solve any discovered bugs, in order to improve your app and make sure that you have the best possible experience with Drumtune PRO.

Links on tuning

http://mikedrums.com/tuning/tuning.html

http://www.tunadrum.com/resonant-heads

http://www.awdrums.com/drum-tuning

http://www.drum-tuning.info/

http://www.sonicscoop.com/2011/07/28/studio-skillset-drum-tuning-essentials/4/"

http://www.waywood.com/tuning_toms_drummers.htm

http://www.maxwelldrums.com/steves-tuning-tips-weblog-c-593.html

http://www.chrisbrushdrums.com/drum-tuning/

Video on pitch bend

https://www.youtube.com/watch?v=yl9wgXSfxew