midi-evil

A toy project that draws visual elements based on midi notes.

General

This is still in a fairly rough state. What we have so far...

• midi signal path
• quil integration
• basic note->colour mapping that should result in some consistency between colour and music harmony
• realtime device state for inferring things like chord identification and velocity spread
• a decent draw state model
• mutator functions in the state model that can alter draw params (to add stuff like fades and movement to the visual elements)
• draw functions that can be dynamically bound to the state model on note entry (to do stuff like bind velocity or octave to different draw styles)

TODO:

• deal with non-note midi commands like aftertouch and sustain. currently these error out
• come up with some fun draw and mutator functions for rendering dynamic visual elements

Caveats: This project was started (very hungover) as a toy to try Quil. It was some of the earliest Clojure I wrote. I've worked on it very intermittently since then during various points in my own progression. It's a mixed bag and not very serious. The latest iteration incorporates some category theory principles. Future intentions include running this on a raspberry pi and adding visualisations that act as learning aids for the piano.

Quickstart

1. clone the project
2. plug in a midi controller
3. boot repl
4. (require 'main)
5. select midi device from the list in a launched applet window
6. play notes
7. see circles

Notes

Notes: 0 - 127 (middle C is at 60)