OmniTouch

OmniTouch is a custom instrument for TouchOSC that replicates partially a Suzuki Omnichord.
Main differences are :

• All 12 chords in circle of fifths order (instead of 9 on the original)
• Only strumming mode

The first row is used to trigger major chords, strum on the right for arpeggios.
The second row is used to trigger minor chords, strum on the right for arpeggios.
The third row is used to trigger major/minor seventh chords, depending on what is chosen above.

Demo

🖼 Screenshot of interface

🎥 Video with Ableton Live and iPad

OmniTouch | Demo - YouTube

using TouchOSC for iOS, protokol for midi logging debug.

Usage

Download omnitouch.tosc and import it in TouchOSC. As it uses multitouch, ensure you have a tactile screen or use a tablet.

Make sure TouchOSC is linked to you TouchOSC bridge for midi forwarding.

⚠️ If you encounter latency, check for network issues or bridge via USB.

Customisation

The main script logic can be found under the strumming elements. The script is replicated in logic.lua.

You can modify the intervals order in order to create new chords.

  chords_offsets = {
  {0, 4, 7, 12, 16, 19, 24, 28, 31, 36, 40, 43}, 
  {0, 3, 7, 12, 15, 19, 24, 27, 31, 36, 39, 43}, 
  {0, 4, 7, 11, 12, 16, 19, 23, 24, 28, 31, 35}, 
  {0, 3, 7, 10, 12, 15, 19, 22, 24, 27, 31, 34}}

Also, you can choose the origin and/or ordering of the tonic notes.

  note_codes = {
  52 + offset, 
  57 + offset,
  50 + offset,
  55 + offset,
  48 + offset,
  53 + offset,
  46 + offset,
  51 + offset,
  44 + offset,
  49 + offset,
  42 + offset,
  47 + offset
  }

Dependencies

TouchOSC touchosc
TouchOSC Bridge touchosc-bridge