By (ahem) popular demand and as a follow-up to Lester and Helena’s glitteringly professional ABC Q&A at Playgroup 7 here’s some further information about the wonderful world of ABC:
ABC notation – Helena’s guide from the Ewell Sessions website
Beginners Guide to ABC notation – Lester’s Melnet guide
The ABC notation website. Everything you need to know about ABC right from the horses mouth.
Lester’s Tune-a-Day big abc file.