We were invited to play at a folk festival. We were a prog-jazz-fusion band. I didn't understand why they were calling us for this festival, but it was well paid. We said yes.
The folk guys said us after the balance : "Wow what a sound.”
When we started to play, everyone left the venue, I mean we really played for the tables and chairs. Even the sound engineer left.
They came back when we had finished, saying : "The sound was better outside". No kidding.
And yes, we got our money...