JJazzLab

Desktop app that generates backing tracks from chord symbols and a chosen music style.

Desktopfree

JJazzLab is an open-source desktop application that turns typed chord symbols and a chosen style into a complete MIDI backing track with drums, bass, guitar, piano and other parts. It includes its own software synth and can route to VST plugins. Musicians use it for practising at home, teaching, and sketching early-stage compositions.

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