This is John Chambers' music directory. Most of the music here is in the abc notation, which you can find out about by visiting the abc home page.

Some of the things here:
directory description
abc my abc tune archive
doc assorted documents
abc/session my session tune collections
CFO Cambridge Folk Orchestra music collection
O'Neill's The O'Neills' collections combined
book assorted historical music collections that have been transcribed to ABC
humor musical humor
ndx my abc tune finder's index files