Where is Warsaw's CBD?

Hello Lovely Polish people!

I have just arrived in Warsaw yesterday and wondering could anyone tell me where the CBD in Warsaw is? On what streets or what part of town? I am staying in Old Town.

I am also wondering if and where any jazz music clubs might be? I'm over 30 so the pop music / drinking / pub / club scene is not for me but I am interested in getting to know the music and art scene in Warsaw.

If anyone could help me out with this stuff I'd be very grateful!

Thanks,
Nicole

Doesn't have as clearly defined as in American cities but the busiest office place is between rondo onz and the station, about 2 k west of where you are

Thank cms.

Just wondering when you say 'the station' do you mean Centralna?