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




JJazzLab is described as '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' and is a music production app in the audio & music category. There are more than 10 alternatives to JJazzLab for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best JJazzLab alternative is Impro-Visor, which is both free and Open Source. Other great apps like JJazzLab are Band-in-a-Box, ChordPulse, iReal Pro and Tonelib JAM.
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.


ChordPulse is a handy backing band software for music practice, inspiration, improvisation, and pure fun with music. Play and sing along with ChordPulse. Use it as a full accompaniment, a drum machine with bass, a metronome with chords, and more.

iReal Pro offers an easy-to-use tool to help musicians of all levels master their art. iReal Pro simulates a real-sounding band that can accompany you as you practice, and also lets you collect chord charts of your favorite songs for reference.



The Tonelib JAM is a software for creating, editing, printing and listening to tablature and sheet music for guitar and other fretted instruments. You can use Tonelib JAM for regular guitar practicing, for learning songs or for advancing your performance skills to the next level.


“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.

Melody Assistant is dedicated to music writing, printing and rendering. Easy to use, Melody Assistant offers a user-friendly interface and powerful capabilities. Now used by a very active community of thousands of people, it has become a favored tool for creating music.
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Harmony Assistant is an unbeatable software for computer-assisted music composition and editing.

A chord sequencer with 300+ great sounding styles. Allows you to create chord progressions and backing tracks in minutes.

LeMMA is a 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”.



vArranger is a PC arranger software, playing Yamaha, Roland and Ketron styles in realtime !

Genius Jamtracks is a play-along app with an impressively realistic sound and feel to help you build your repertoire, your jazz vocabulary and master polyrhythms.
“ Genius Jamtracks is easily the best play along app out there! " Paul Bollenback



