My wife and I have a duo where we play mp3 backing tracks and sing/play along.
I'm using an android tablet with my mp3 files on it to play my backing tra CV is through our small pa system

What I'd like to do is find a way to advance through the set list (mp3s) track one, track 2, track 3 etc... with a foot switch instead of tapping on the screen.

I'm not talking about pdf files of the sheet music I'm talking about the actual mp3 files so as to play one song after another. I would have the mp3s arranged in the app in order of my set list.

Anybody doing this? What gear are you using? Android apps, pedal etc...