I wonder if there is enough room for this.
Create a backtrack folder on the USB key then go into the "performance mode"...select Player then into the list of backtracks select one of them and play.
It could display a player with :
***********************************************************************************
<play/pause> <stop> <loop begin/loop end> on the soft buttons
LITTLE WING
=================== progression bar
<backward/forward> on the first rotary encoder turn the knob in order to move
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I would like to be able to jam on backtracks using my kpa.