Band-in-a-Box is an automatic accompaniment program for Macintosh. You type in the chord symbols to any song, using standard chord symbols like C, Fm7, Cm7b5 etc. choose a style and press PLAY. Band-in-a-Box then generates a pro quality 5 instrument accompaniment of bass, drums, piano, guitar and strings in over 100 styles of music.
Full Specifications
What's new in version 2020.419
Fixed: "UltraPAK=" style category counts are larger than they should be.
Fixed: Spurious messages about Natural Arrangements.
Fixed: Current location should be sent to VST plugins when song isn't playing.
Fixed: Some VST plugins might not be triggered to play or stop.