I hate to be that guy, but all the stories in this thread are fake because the bartenders can just skip the songs. For exactly this reason. As if the people who designed these machines didn’t think of this exact thing.
Do they know they can? I’m guessing they need the app to do it. I’m guessing, because I’ve successfully done this twice.
There is a physical remote control device for the touch tunes machine which can be used to control the volume and playback and stuff.