HAMAMATSU, Shizuoka Prefecture--Yamaha Corp.'s sales in China of equipment including pianos have hit a sour note following Beijing’s educational policy changes aimed at reducing extracurricular ...

The piano is a favorite instrument for experienced ... keys – most come in increments of 25, 32, 49, 61 or 72 keys. According to Yamaha, the reason for the 88 keys has to do with the hearing ...