Can anyone recommend multi-part acoustic songs for groups of guitarists to perform? I'm going to have my high school guitar class put on a spring concert, and since this is my first year teaching it, I have little idea where to start. One idea is to have a group concert where all 15 of us are banging out the same chords. Kinda meh. I checked out Richard Tyborski's "Classroom Guitar," and he's got some cool four part guitar compositions for beginners. Most of the pieces aren't more than 16 or 20 measures long, though. Anyone know of more sources out there for compositions for small guitar ensembles? Thanks in advance.