Op 133 Studios has introduced MicroSketch – an iPad music app for playing and experimenting with equal divisions of the octave other than the standard 12-tone scale.
WIth MicroSketch, octave divisions can be anything from 7 to 96.
The app is polyphonic up to the capabilities of your device’s processor (typically 24 voices) and multi-timbral with 16 ‘instrumental’ timbres.
The instruments are all fully synthesized (no samples!) using subtractive, additive, frequency modulation, the Karplus-Strong string model, VoSim, and granular synthesis techniques.
The microSketch keyboard can have a variable number of keys arranged in a square from 5 by 5 up to 15 by 15. The keyboard is isomorphic, with the horizontal and vertical interval set independently for each instrument.
Other properties of the instruments can also be set independently, like the pan position, amplitude, and reverb mix amount. The bottom note for each instrument can also be set.
Each instrument can be set in ‘Sustain’ mode, where a key touch turns a note on, and another key touch releases the note. For some instruments, the ‘Sustain’ mode gives you a variation on that instrument.
Video demos are available at the developer’s site.
microSketch is US $4.99 in the App Store.
If you’ve used microSketch, let us know what you think of it!