1. Yamaha is a Japanese brand founded in Torakusu Yamaha in 1887, and its headquarters is located in Qianqiao City, Gunma Prefecture, Japan. Yamaha products range from keyboard instruments such as piano, electronic organ and synthesizer, wind instruments such as brass and woodwind, stringed instruments such as violin and cello, and all percussion instruments to the most advanced professional audio equipment.

2. "Zhujiang" brand piano is one of the independent brands of Zhujiang Piano Group. It has won "China Famous Brand Product" and "China Well-known Trademark", and has been rated as "export brand to be cultivated" by the Ministry of Commerce. It is a well-known Chinese musical instrument brand.