Well I've been to some of the workshops in the past ... and I've never taken a guitar ... because I don't play and haven't got one ( well I have, but it's got a big hole in it, where a big hole shouldn't be ) ... obviously if you have one ( or borrow one ) then you could join in with the classes if you wanted to. But apart from those ... no guitar is really needed ... unless of course, you want to do any gigging/busking ?!? Well that's a shame ... it's a real good laugh and most of the music is free ! Though saying that, I would recommend the "Acoustic Forum" on the Friday evening ( 8 euros ) ... it's a good way ( for us ) to see some of the main acts of the weekend, in one place. If you are/were a fan of John Martyn, then I would highly recommend you see Gareth Forsyth at 10:30am on the Friday ( though not sure I'll be there at that unsociable hour ) ... he can sound just like John did ... and in fact was asked by John to support him on his next tour, alas though that tragically never never occured.