"What do you other players use for songlists at gigs ?"
We usually have a list on a piece of paper..

I would consider a simple mp3 player if I was doin' it.
Or a laptop full of seq file sets
load up each track with it's own mixed down song, and save the whole set as a single file
Just make sure the solo button is enabled, and you could jump from track to track at will.
Build whole shows in one file.