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




LeMMA has been discontinued. Similar apps include Impro-Visor, which is free and open source. Other options are Band-in-a-Box, JJazzLab, MMA and BackupBand. In total there are six Music Production Apps like LeMMA for Windows, Linux and Mac.
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.


