Playing a keyboard with a ball – Bullet solver & Sending MIDI notes – TouchDesigner tutorial

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In this tutorial we will build a keyboard that plays when a ball hits its keys, using the bullet solver COMP and the sendMIDI function in TouchDesigner.
To setup the basic communication between TouchDesigner and Ableton Live check the first 5 minutes of this video: https://www.youtube.com/watch?v=aUOtezWPnns&feature=youtu.be

The topics covered are:

– Setup and render of a scene using the Bullet solver COMP
– Using the collisions in the scene to produce triggers
– Using the collisions to play MIDI notes in Ableton Live