Accompaniment Machine is described as 'AMac (the Accompaniment Machine) is a sophisticated program to create accompaniments for solo or group performances and to boost the power of digital keyboards' and is an app in the Audio & Music category. There are more than 10 alternatives to Accompaniment Machine for Windows, Online / Web-based, Self-Hosted solutions, Mac and Linux. The best alternative is TrebleMaker, which is both free and Open Source. Other great apps like Accompaniment Machine are Band-in-a-Box (Paid), JJazzLab (Free, Open Source), Sharp11 (Free, Open Source) and VArranger (Paid).
TrebleMaker.ai procedurally generates royalty-free MIDI files compatible with any DAW. Just visit the site and it auto-generates a MIDI song you can download as a zipped .tar file and even check it out live using the Play icon.
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.
Sharp11 is an npm module for performing music theory operations, ranging from simple things like transposing a note to complicated things like generating an ordered list of scales that can be played over a given chord.
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!.
The Live-Styler is a fully equipped, software based computer organ. With it you can optionally operate 3 top manuals, 2 middle manuals, 2 low manuals and 1 bass pedal. The Live-Styler includes a complete automatic accompaniment.
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.