This is a collection of collections of music for assorted "sessions" that I've been involved in. It's all fairly experimental. The idea is to work on ways of presenting the music so it's useful to others who might be interested in playing music with the same crowds. This is a very fuzzy definition, obviously.
Some tools to do useful things in directories full of .abc tune files:
Session lister (Names, Titles) -- Collection lister -- Tune lister