Random_Touch_MP3 sketch

Hello everyone,

I'm using a Bareconductive Touch board with proximity sensors and I was wondering if there is a way to modify the Random_Touch_MP3 sketch so that I can use proximity sensors instead of only touch. I'm a bit new to Arduino and
I would appraciate if anyone can send me advise or a link to be able to make this
adjustment. Thank you!

Ciao,

Giorgio