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.
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.
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