The piano and bass are on different stereo channels, so they can be turned off individually if you play one of those instruments. I recommend all performers pick up a few of these. Advertisements are run in Down Beat magazine. This program runs on several different hardware platforms. It actually does a very good job of generating realistic parts, and if your synthesizer can generate realistic sounds, you may not be able to tell you are not playing with a recording of a real rhythm section.
Disks are available containing hundreds of songs already entered.
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