Apps similar to JJazzLab include Impro-Visor, which is free and open source. Other options are Band-in-a-Box, ChordPulse, iReal Pro and Tonelib JAM. You can choose from more than 10 Music Production Apps like JJazzLab for Windows, Linux, Mac, Android and iPhone.
Groovyband Live! is a realtime arranger software that runs on any Windows PC (tablet, laptop, desktop), interfaces with MIDI input devices (keyboards, pedal board, control surfaces) and produces a live stream of MIDI events to drive a suitable sound generator.
AMac (the Accompaniment Machine) is a sophisticated program to create accompaniments for solo or group performances and to boost the power of digital keyboards.
Music education and improvisation practice tool. 62 scales, 35 tunings, extended range guitars, guide tones and listen-back analysis. Works offline, no account needed.
United Kingdom
Transforms all (piano, synthesizer) keyboards into arranger keyboards with real time chords recognition! Creates complete MIDI music-arrangements with just simple drag and drop operations! Utilises, modifies and creates styles in Yamaha format!
