Hogwash again, dj.
The tenant is entitled to quiet possession of the property, and that doesn't mean against noise. The landlord cannot tell the tenant who to invite to his home.
Don't you know that this is America, and in case the NY schools don't teach the Constitution, go look up the Right of Association.
As for your idea of a restraining order, what makes you think that the landlord could get an order forbidding someone from coming near property he owns but doesn't live in? If you know anything about what a restraining order is, and what it is to be used for, how would this fit?
The answer to Irene Valenti is NO, the landlord cannot put something like that in the lease.