Arturia KeyStep Pro Keyboard with Advanced Sequencer and Arpeggiator - Manual (Page 99)

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♪ : To select a Drum track/sound without generating a trigger, hold down the Track 1 Drum button and
press the appropriate key.
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♪ : In Drum mode, the Overdub button is always inactive; you cannot overdub on a Drum track.
5.4.1.1. Polymeter
As explained in the Overview chapter, the Drum sequencer can operate in Poly or Mono
mode. In Poly mode, each Drum track can have its own length. This feature enables you to
create complex polymeter rhythms (polyrhythms).
5.4.1.2. Exploring Polymeter
Here's an example:
What if you wanted a Pattern with this crazy mixture of loops, each in a different time
signature:
Instrument: Drum track 1 Drum tr. 2 Drum tr. 3 Drum tr. 4 Drum tr. 5
Time signature 3/16 1/4 5/16 3/8 4/4
Track 5 is the longest, so we'll use that as the timing reference.
Drum track 2 recycles every quarter-note beat (1, 2, 3 and 4), while Drum track 5 recycles
every four beats (that is, only on beat 1).
Drum track 1 recycles every 3 sixteenth notes; Drum track 3 recycles every 5 sixteenth notes;
Drum track 4 recycles every 6 sixteenth notes. Therefore, it will take a long time before they
all recycle at the same moment, as they did in the beginning. In fact, it will be 360 bars of
4/4 time before the first bar is heard again!
Arturia - User Manual Keystep Pro - Making Tracks 93