Qin Chain (QINB CHAIN) was established by China Musical Instrument Industry Foundation (Singapore). Based on blockchain technology, it exclusively cooperates with Xueyinyue.com to launch the "Qin Lian App" to encourage piano practice behaviors and make them persist in practicing piano And share and disseminate, drive the whole people to join in learning and practicing piano. Tokens (points) generated by users’ incentives to practice piano can be exchanged for musical instruments online, and can also be used to purchase courses and other commodities. Help musical instrument manufacturers to destock, recruit students, drive and prosper the music market, and make positive contributions to the full realization of cultural renaissance.