Huiqian Musical Instruments Store, Wanfu Road, Yuexiu District, Guangzhou City, Guangdong Province. According to the query results, the trumpet mouthpiece is a musical instrument accessory that can be purchased at major musical instrument stores. Guangzhou users can purchase it at Huiqian Musical Instruments Store located on Wanfu Road, Yuexiu District, Guangzhou City, Guangdong Province. The trumpet, also known as the trumpet, is a type of brass instrument. Among all brass instruments, the trumpet has the highest pronunciation and sound. The trumpet uses the treble clef of the staff and uses a fixed roll call. method, that is, the concept of fixed pitch is performed.