Using the Drums Touch Instrument, you can play a drum kit simply by tapping the onscreen drums. You can choose either an acoustic or electronic drum kit.
Tap the name of the drum kit at the top of the screen, then tap the drum kit you want to play. You can also swipe left or right to change to the previous or next drum kit.
Acoustic drum kits show a realistic-looking set of drums, and electronic drum kits show a grid of drum pads.
You can access an acoustic or electronic drum kit directly from the browser by tapping Acoustic Drums or Electronic Drums.
Tap the onscreen drums (for electronic kits, drum pads).
Some drums, such as the hi-hat and snare drum, make different sounds when you tap different parts of them. To see which sounds they make, tap the Info button 
to show the coaching tips. Some drums also respond to other gestures.
Touching and holding a drum with two (or more) fingers plays a repeating pattern. By changing the distance between your fingers, you can make the repeats faster or slower. Moving a finger up or down makes the repeats play louder or softer.
Tap the Record button 
in the control bar.
Tap the drums in the drum kit.
You can record one or more drums at a time. When the playhead starts over from the beginning of the section, you can record another part and it will be merged with the existing parts. You can turn off merging in the Track controls.
When you finish, tap the Play button 
in the control bar to stop recording. Tap Play again to hear the drum groove.
By default, when you tap the crash cymbal on the acoustic drums kit, the bass drum plays together with the cymbal. You can set whether tapping the crash cymbal plays both sounds, or only the cymbal.
Tap the Track Controls button 
in the control bar, tap Track Settings, then tap Recording.
Tap the “Bass Drum with Cymbal” switch to turn it on or off.
You can set the touch sensitivity for the drums to one of four levels. Increasing the touch sensitivity makes hits sound louder or softer depending on how hard you tap the drums. If you turn touch sensitivity off, all notes sound the same regardless of how hard you tap the drums.
Tap the Track Controls button in the control bar, tap Track Settings, then tap Velocity Sensitivity.
Tap the sensitivity level you want to use for the drums.
Modify an existing drum sound by adjusting the control knobs (for electronic drum kits only).
Tap the name of the drum kit at the top of the screen, then tap Save.
Type a name for your custom sound, then tap Done.
The first time you save a custom sound, a new Custom category appears, with an icon for your sound. You can rename or delete the sound by tapping Edit, then tapping the icon (to rename the sound) or the red circle (to delete the sound).
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