I was given a PRS form with my artist's season tickets at Chippenham and Sidmouth, and I entered the song titles I sang at programmed events (including trad). But the idea of obtaining and completing forms for singing informally and unpaid just sounds like part of the PEL bureaucratic nightmare.

I usually keep a note of what I've sung to avoid excessive repeats, but with luck I won't be able to remember what I've sung in the pubs in Whitby....