I tried the laptop routine, but, I don't lug it around anymore.

I have a pedal I can load the backing tracks into and start them in sequence. Or scroll through the songs and play them in any order I need. All of my songs are praise and worship originals. Usually just playing with another guitarist, and occasionally a drummer. Tracks have drums, piano/keys, bass, steel, sometimes harmonica, or cello. Usually mixed in RB with a short version and a longer version.

The sound guy likes the signal he gets from the pedal, it mixes the track, vocal and guitar levels and sends one signal to the board. I can change the guitar and vocal effects while the song is playing.

"When you help somebody else you are really helping yourself"