Can someone point the 3 episodes of Bugs Bunny that...?

Question

1. Was directing an opera and made a Man collapse the scenario?
2. Was washing Elemer´s head with a hot towel as a barber man
3. Was directing an orchestra and was applauded by a fly?

And also...what were the names of these songs (on each one of them)?

I like them so much, but I cannot remember now...how the episodes were called or the name of the classical masterpieces they used...

Thanks

(a youtube link perhaps?)

Answer 1

1. Long-haired Hare
2. The Rabbit of Seville
3. ???