Personally, I think the whales' did have musical good taste in this matter - otherwise they would have boycotted the concert, by high-tailing it, though perhaps they did consider taking a 'direct action' protest.

ScuttleBob - Thanks for the concertina story, this I think, is the proof we are looking for, without having to take to sea with the Edinburgh Tattoo. (By the way I hope you're planning another concert tour Downunder...??)