i have a question.i play on a buffet R13 and 3 1/2 reeds but i just have a standatd mouthepiece.would getting a new mouthpiece hlep improve my tone and sound??

The stock mouthpieces that come with Buffet instruments are notoriously horrible.

I consider the mouthpiece/reed combination to be much more important of a factor than even the instrument when it comes to producing a nice tone. This said, it is virtually impossible to just reccomend a mouthpiece for you out of the blue. The type of music you wish to play, your skill level, your embechoure, and the tone you wish to aim for are all needed to choose the right mouthpiece.

Vandoren is one of the most respected mouthpiece makers and are consider the most popular makers of mass produced hard rubber mouthpieces. Their M13 and M15 series are world famous closed facing and small tip opening mouthpieces. For the other end of the spectrum, the long facing/open tip B40 and B45 series are also in high demand amongst both students and professionals worldwide. To go with that, Vandorens mouthpieces sell for a relatively cheap 50 bucks.

Handmade mouthpieces are without a doubt much better than hard rubber. Respected mouthpiece makers include Walter Grabner (www.clarinetxpress.com) and Chicago Symphony clarinetist Gregory Smith (www.greg-smith.com)
Smith`s kasper mouthpieces sell for around 200 bucks or more and are considered by many to be the top mouthpieces you can buy.

Other noteworthy companies include Giglioty, Leblanc, Selmer, Hite, Nova, and Pete Fountain.

Personally, I use Vandorens.