The Philadelphia Orchestra is a professional full-time orchestra. It is considered one of the elite orchestras in the world. By that definition, it is a philharmonic orchestra, though "philharmonic"...
An orchestra plays music for entertainment/pleasure.
It depends on the guy i would say. But i'd say there's a pretty good chance they would because it's one thing you have in common already
For whom?Beethoven 7 is always a good answer.
The clarinet.