You might get volunteer information from Jonathan Shay, who's
in charge of the whole thing this year, or Joanie Dimartino,
who is assisting him.

As to the Thursday start, it's started on Thursday night for
as many years as I can remember. 'Members preview' concert,
which in the last couple of years was followed by a sparse
but pleasant pub sing in the Galley.

It's also astonishing to me how many 'regulars' just don't
know about the Thursday night concert!