
Drum Machine Designer lets you build custom electronic drum kits from a wide selection of drum and percussion sounds. It also provides controls that change the sound characteristics of each piece in your kit. It is compatible with the General MIDI (GM) standard.
The interface is divided into the following main areas:

Drum grid: Click a drum cell to play its sound. Each cell offers its own kit piece or sound.
Smart Controls area: Updates according to the currently selected drum kit or drum kit piece. You can edit individual parameter values.
Choose an Electronic or Hip Hop drummer track, or a software instrument track.
Do one of the following:
In the Library: Select the Drum Machine Designer drum kit in the Sounds area and move the pointer over the Track icon at the top of the Library. Click the Instrument Editor button that appears in the Track icon.

In the inspector or Mixer: Click Drum Machine Designer in the Drummer track’s respective channel strip slot.
In a software instrument channel strip: Click the Instrument slot, then choose Drum Machine Designer from the pop-up menu.