Top 5 synthesia open source projects

Create pianobooster midi from youtube piano video lessons (Synthesia).

Flashy Synthesia Like Software For Linux,Windows and MacOs

A Synthesia styled MIDI visualization.

🎹 Use Native Instruments Komplete Kontrol mk2 light guide in Synthesia

MIDI piano app, written in V. Visualizes and plays back a MIDI file (similarly to Synthesia)