User's Manual

5.7. Arpeggio Tricks
5.7.1. Ratcheting
In chapter 3 [p.25] we've discussed one of the features that makes the KeyStep 37 rather
unique: creating your own scale.
This feature opens up a lot creative options when playing arpeggios, you could for instance
create a scale with very few active notes; C, F, B.
All other notes of the scale, when played will be quantized to these three notes. Playing the
scale chromatically yields:
Notes
C C# D D# E F F# G G# A A# B
C C C F F F F F F B B B
When playing and arpeggio in this scale by holding down 5 or 6 keys, the F will be repated
very often (ratched) and dominate the arpeggio, followed by less frequent appearances of
C and B.
5.7.2. Spicing up your Arpeggios
Use the Pitchbend touch strip to change the pitch of your arpeggio.

♪: In the MIDI Control Center you can set the pitch bend range in semitones (half steps). !: One of
the most overlooked applications of an arpeggiator is just playing one note instead of a chord. When
you set the Arpeggio to medium speed, you can create interesting rhythms by sporadically lifting and
pressing a finger on a key. You can take this idea further to create Hoketus. Hoketus is the name of a
technique where you repeat one note over and over, never changing its pitch, though you do change
other parameters of the note: for example, its timbre (LFO→Filter Cutoff), the Attack, Sustain and Decay
stages of the note's amplitude or filter envelope, and its velocity or aftertouch (pressure).
Arturia - User Manual KeyStep 37 - The Arpeggiator 60