Minority instruments? If you want additional workshops then, go to the office and ask for a space. Then advertise it in the Whaler. It may even be that some of the booked acts will join in, some of us play minority instruments after all!.
Liz and I are running a 'singaround' (Event 223) 5.00 to 7.00 in the Endeavour. We'd be ceratinly likely to do some accompanied stuff and would welcome people to make it a mixed session with both tunes and songs.