Really? In which case mine is about an octave out! Don't suppose you know what the top two ones with only six notes are tuned to? They go red white white white blue white white then a red one again. Presumably if yours is a 29 string one it has a range of four octaves, but mine seems to be missing a note or two!

Thanks so much for your help, Sorcha. It really is much appreciated!

Yours in dwindling ignorance

Chris