The ring section firmly captures the resonance, and the bridge section reliably transmits the resonance to the body of the instrument. The ring is attached to the outside of the mouthpiece. It captures the vibrational energy as if enveloping it, and returns it to the body of the instrument through the bridge. Of course, there is no problem with slightly pulling out the tube for tuning. By changing the material of the bridge section, it is also possible to change the sound quality and playing feel. The Re:VIBRATION bridge system has already proven its effectiveness in Re:VIBRATION for brass instruments. The metal is heated until it is red-hot and then rapidly cooled. This makes the material resonate more strongly by equalizing the molecular bonds of the metal. This is carefully hammered to form the shape. This process can only be done by hand. Many high-grade, expensive brass instruments are made by hand in this way. This is proof of how important this process is for resonance. Change the material to match the song or scene YELLOW BRASS This metal (brass) is used in many brass instruments and has an excellent balance of resonance, resistance, and strength.