This item for sale is: ■BUFFix for Clarinet RUDDISH COPPER 9800 yen ■ Acoustic improvement rings for clarinets are sold by several manufacturers, but instead of factory-made products (metal bent by force or metal cut out of a plate), each one is annealed and carefully hand-hammered to homogenize the material molecules, resulting in a different resonance of the metal material itself. In addition, rings that are inserted into the connection have the disadvantage of making it difficult to adjust the pitch. This product is attached to the outside of the body, so it does not affect pitch adjustments such as pulling out the tube slightly. The closer it is to the sound source, the higher the effect and influence, but this product can be attached to the mouthpiece (directly below the reed), so it is effective in all ranges. It can be used as is, but if resonance occurs, it can be resolved by attaching it with double-sided tape. ■YELLOW BRASS Tightens the resonance with moderate resistance, and makes the body resonate with a bright and clear sound. ■RUDDISH COPPER Maximizes the resonance of copper, creating a deep, lustrous sound. It has the strongest resistance, but the tone is exquisite. ■STARLING SILVER Uses STARLING SILVER, which produces directional resonance, and has the highest effect realization rate. The directional resonance delivers the tone to every corner of the hall. 【NachtmusiK BRASS FACTORY】 This is a development and sales workshop for the acoustic improvement item "Re:VIBRATION" for brass instruments. Re:VIBRATION, which has been on sale since last year, has been a hot topic for its significant effects. Re:VIBRATION is sold at Dolce Music (Osaka store, Tokyo store, Nagoya store). In addition to BUFFix, the direct online shop also sells various items such as Re:VIBRATION. https://nachtmusik.theshop.jp/