quality problems. Scratches on the trademark of Yamaha electronic organ are quality problems caused by improper operation during production or transportation, which belong to the fault of the merchant. The problem can be solved by returning the goods to the merchant. 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 piano, electronic organ, synthesizer and other keyboard instruments to brass and woodwind instruments.