Trombone mouthpieces vary in price depending on what they are made of and brand. Prices can range between $20.00 and $225.00 for basic mouthpieces. The least expensive units are made of brass.

The mouthpieces of a clarinet and a bass clarinet are identical in design. Where they differ is in size alone.

They are typically made of brass and finished with a silver plating. Some mouthpieces are gold-plated.

Yamaha

The difference between different numbered cornet mouthpieces is the size of the mouthpiece. The higher the number on the mouthpiece the smaller the mouthpiece.