Expect a big one for electronic music lovers as ALTER returns to SYSTEM. (Capital letters denote big things.) On stage sees two exceptionally talented selectors in Velvet Robot and QiuQiu, as well as a special live duo performance from Wang Meng with Yu Miao, featuring double traditional Chinese instrument Guzheng. On the Danlu stage, they host XDD and residents ALTER. Soundsystem for the evening. As ever, expect heavy hitting party starters and high dance floor energy. Epic venue, two special stages, many art instellations and a showcase of 5 of Shanghai's best electronic music composers. Starts 9pm. Advance tickets available on SmartTicket.