I need advice. I have a clarinet (Bb) and I am thinking about getting a Vanduren B45 mouthpiece, and a Rovner Ligature (Dark). What kind of mouthpiece is it that I need? I see like two or three different kinds, and I am a traditional player. I need some advice from the professionals.

I would suggest going with the B45 Traditional. It's $77.00 at WWBW. Here's the link for it:

http://www.wwbw.com/Vandoren-B45-Series-Bb-Clarinet-Mouthpiece-483747-i1442242.wwbw

Something else to consider...go to a local music shop and ask to try out a variety of clarinet mouthpieces. Many times, they'll let you pick a few and try them out to find the one you like best.