You're at a wedding, in a restaurant or, incredibly, an actual jazz venue.
A jazz band is playing.
If you want them to like you, do not, under any circumstances, say any of the following to them...
Things You Should Never Say To A Jazz Musician
(With thanks to: Gwilym Simcock, Diccon Cooper, Joy Ellis, Darren Altman, Fiona Egan, Hannah Northedge, Christian Vaughan, Richard Swan, Ben Bastin.)