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The Accompaniment Machine (AMac)

The Accompaniment Machine (AMac) is an easy-to-use program that lets you create professional-sounding custom accompaniments to any song, even if you have no experience in composing and arranging. AMac is an invaluable resource for vocalists, instrumental soloist, choirs, singing groups and keyboardists. The key is the program's ability to access the multitude of Yamaha-format accompaniment styles available on the Internet — virtual backup bands for your performances. The package includes a library of over 7000 tested styles and hundreds of ready-to-use accompaniments. The programs Style Master and MIDI Doctor are included free. Check out the video below for a quick introduction to AMac.
New article: Running AMac on a Windows tablet.

Listen to AMac accompaniment examples
Check out actual AMac performances



(Windows XP users: download the MP4 file if the video will not play in your browser: Video download)