The iAlchemy performance was last night and it went really well.
I wasn't sure the performance space would work -- we were on a 2nd stage in the lobby-- but it really did. The whole crowd surrounded us (and peered down from the balcony) and it really created a great effect.
My kids did great and looked great. We had an interesting moment where 1/2 way through the piece piano music began to play. Initially we though an iPad was cycling, but now we think the pianist for the 2nd half was warming up for the Tchaikovsky piano concerto and it was getting picked up by the house mic and fed into the speakers.
Good time all around.