So it would work in a similar way as the midi keyboard Styles work.
Below is the make up of a keyboard Style, you have all the different sections then those sections of midi notes are just snapped to your chord notes you are playing.
But with Biab you would get way more diversity and Real playing of Real Instruments.
Look out Yamaha, though they do now have Real Audio for their drums in some Styles of the better keyboards.

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