Werckmeister

“Werckmeister compiles sheet music source code into a MIDI file.

It allows you to write sheet music a lá “Real Book”, Werckmeister compiles it into MIDI music.

Features:

• Open source.
• A fast sheet music MIDI compiler.
• A sheet music MIDI player.
• Accompaniment template rendering engine.
• Lua script extensions.

Use Werckmeister if you want to:

• Translate sheet music into MIDI music.
• Prototype a song.
• Experiment with chord progressions or different accompaniment styles.
• Compose using readable source code instead of proprietary files formats.”