Free, open-source software arranger workstation (JUCE/C++, Windows). Live chord-following accompaniment, piano-roll style editor, MIDI-to-style converter (auto-split + AI fills), FluidSynth GM playback. GPLv3.
audio music windows cpp midi music-theory soundfont fluidsynth juce music-production arranger auto-accompaniment arranger-keyboard style-player backing-band
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Updated
Jun 29, 2026 - C++