piCorePlayer with hardware buttons

Hi there,

I just testet the piCorePlayer and it works like a charm. Now I thought, I put the hole stuff in a nice case and I wonder, if someone had connected hardware buttons to the PI for volume up/down an so on before.

My vision is to control volume with a incremental type encoder and have some buttons for skip an maybe one or two favorits.

Has anybody done something like this or an idea where to look first.

Regards
Mik