Repertoire Suggestions for "Background" Gigs

Hi!

I'm preparing for gigs at some restaurants and cafes and am searching for new repertoire. Specifically, I'm looking for music that can be quickly memorized and/or sight-read, that way I can rotate it in alongside my current repertoire (which includes Barrios, Villa-Lobos, and a few Dyens arrangements). I hate to call it "background music," but that's essentially what I'm after. Also, I'd say I'm an intermediate-advanced player if that helps!