How to go about recreating my beats for a live show?

Recently found out I'm going on tour with my group and all of our songs currently use a backing track (bass and drums as well as backing vocals). The group consists of two guitars and a singer. That's it.

Some of our new ones don't have any guitars and it's mainly just samples played on my Push or a keyboard with a beat behind it. I'd really like to recreate the main sound first, loop it, then hop on the drum beat. I feel like that's pretty easy but how do I go about going to the chorus or whatever? I'm sure there are some good videos out there, I just don't know where to start.