Heize Rinadded a note 8 years ago

both are correct.
the latter is more grammatically correct because it addresses the orchestra as the one entity by using the s in the end of performs.
the first is not 100% accurate but this approach is seen more and more frequently, especially in British English, when a single group of people (an orchestra, a company or similar) is addressed as multiple people - therefore the s is dropped, and the orchestra can be addressed as they rather than it in later sentences.
hope this helps ☺

I think the second one. It has verb agreement to the subject which in this case is "the Orchestra". So the verb should have a "s" added.

Verb agreement can be tricky with nouns that refer to a group of something. My suggestion google "the orchestra" and check out all the sentences where it appears. Or even better google "the orchestra performs" and "the orchestra perform" and see what happens. Learning sentences in a context help a lot. :-) Good luck!

Marissa's advice is very reasonable ☺

thank you :)

I think you already answered this. I just want to add that sometimes collective nouns are notionally perceived as plural, though they're syntactically single. Human features always tend to be more salient than syntactic features, so this could explain some phenomena in which the syntax indicates something but the mind is not very sure about it.

Performs