Impro-Visor is a music notation program designed to help jazz musicians compose and hear solos similar to ones that might be improvised.




LeMMA is described as 'Simple GUI “front-end” written in Python for MMA (Musical MIDI Accompaniment – also written in Python). Just enter the chords, select the grooves and press “Play”' and is a music production app in the audio & music category. There are six alternatives to LeMMA for Windows, Linux and Mac. The best LeMMA alternative is Impro-Visor, which is both free and Open Source. Other great apps like LeMMA are Band-in-a-Box, JJazzLab, MMA and BackupBand.
Impro-Visor is a music notation program designed to help jazz musicians compose and hear solos similar to ones that might be improvised.




Band-in-a-Box is an intelligent automatic accompaniment program. You can hear and play along to many song ideas and go from "nothing" to "something" in a very short period of time with Band-in-a-Box as your "on demand" backup band.


JJazzLab is a free Midi-based application which automatically generates backing tracks (a musical accompaniment) for any song. It’s a jam buddy to have fun improvising, learn new stuff or just practice your instrument. It’s also a great tool for teachers.

“MMA—Musical MIDI Accompaniment” is an accompaniment generator. It creates MIDI tracks for a soloist to perform over from a user supplied file containing chords and MMA directives.




Busker is a complete set of tools to create musical arrangements from sheet music (chords + melody staff). It uses Yamaha compatible styles (thousands can be downloaded for free) for auto-accompaniment.


