Three Channel Selector with Flip-Flops

I need to design a three way channel controller with flip-flops for a
guitar amplifier. The 4013 dual flip-flop has been suggested. I
guess I can use two of them for the controller. I imagiine it would
use three momentary switches to trigger a flip-flop from the leading
edge. Controller must only allow one channel to be operational at a
time. so some how the output of the most recently triggered switch
must reset the all the other flip-flops. This is where I get lost.
Also, I need to figure out how to make one channel the default. So
after power up it is the one that is selected as operational.

Thanks in advance.

FB
.

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