Thanks Richard!
I copied this from the PRS website, which perhaps is also a copyright violation:
Copyright Transcriptions Of Folk Music

(Copyright in the transcription of folk music has always been a bit of a grey area. Copyright law states that if you write down a traditional song, this transcription becomes a copyright work. The copyright lies in the transcription and not in the traditional song.

This means the transcription is copyright. It may not be copied, reproduced, published, publicly performed or adapted unless permission is obtained from the transcriber. However, this does not prevent people from transcribing from the same source. By doing this they create their own copyright - even if their transcription is note for note the same as an exisiting transcription.)

Enough "grey" to paint a battleship!