With auto-accompany switched on, polychord's bass and drums follow along to the chords you play. In this video, we adjust the bass envelope -- giving it a shorter, more percussive release -- and we play a simple chord progression.

The volume mixer lets you turn the different auto-accompany instruments up or down (the arpeggiator, for instance, is turned down by default).

itunes.apple.com/us/app/polychord/id402625491?mt=8

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