An app that colorizes MIDI files to show harmony and other structures


I wanted to share the app that I develop to visualize MIDI arrangements - from solo piano to large band/orchestral ones. It helps me navigate and analyze Western pieces pretty rapidly.

Here’s the rationale behind why I’m doing it:

Hooktheory is a great tool, I’m a happy user for many years. Here I tried to create something that doesn’t require prior analysis to get some instant insights into harmony of a particular piece.

If you find it useful, I’m happy to hear back via

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