B. Tilz 7C. This is a standard model from Tilz. It's characterized by a light and crisp tone. It gives the impression that you can produce a big sound with little breath. The mid-range sounds good. The rim felt rounded. (Reference: Shimamura Music) Tilz is a leading mouthpiece manufacturer in Germany, representing Europe. They manufacture all kinds of brass instrument mouthpieces, pursuing a balance of sound in all areas, including design and metal. Their extensive model variations number over 1500. In Japan, the Bach model is mainly distributed due to the agency relationship, but this model is based on the Mount Vernon model mouthpiece and was developed independently by Tilz. It has little variation and can be used by all players. (Reference: Watanabe Music)