Whoa! A full piano! On the water. I wonder how long they had to spend to re-tune it?
Some of my river-running buddies from the olden days, are credited on a couple a CDs from music that was created in one of the really large amphitheaters that exist on the Colorado deep in the Grand Canyon -- They were the boatmen that hauled all of the musicians, instruments and electronic recording gear to that isolated spot.
I would have loved to have heard the violin playing! Thanks for this really, really good stumper of a puzzle.
Mark