1-bar drum groove on Loop 1, bassline and guitar lines on Loop 2, with ability to drop out all instruments to just bass on its own.
Double Tap loops to stop, one tap to start again, one more tap to overdub, one more to finish overdubbing. Hold button while loop is playing to Undo the last layer.
Stop stops both loops. Hold Stop to delete both loops.
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https://www.youtube.com/watch?v=eJCC7hMi_0w