Quendalon] Does it take its name from a specific human? *some cheering* Yes
Inkspot] To do with the Arts? *more cheering* Yes
Tuj] Anything to do with vehicles? *dead silence* No

irach] Associated with the musical arts? Yes
Rosie] An exhibition? No

Chalky - A male voice choir? Dim

irach] A rock band? *some applause* No

Wakey-wakeeee.

(Irg) - re answer to Chalky; I think that should be Nag'dy ( = no, it isn't), if I read you right. Dim means "no" in the sense of "absence of", eg dim o arian, "no (of) money". Diwedd y wers. :-)

Rosie] Billy Cotton? No
Welsh lesson] Thanks - obviously I'm the dim one.

An orchestra?

(Irg) Well, I wouldn't say that. The problem is that there is no single word for either yes or no in Welsh. You either repeat or negate the verb. Diwedd yr ail wers. (Projoy) You must be older than you look. :-)

Projoy] Some sort of popular beat combo, m'lud? No - see irach's earlier question
Botherer] An orchestra? Good to see you here! No
irach - Does the group still exist? It's not a group
Rosie] A Big Band/Dance Band? No. Thanks for the explanation. Interestingly Putonghua Chinese (Mandarin as it's often known) does much the same.
Inkspot - Did the group form before 1990? See earlier answers