If you have distributed your music and don't know if your music is online in China you can check from there links:

QianQian https://music.91q.com/ (Web site)

TME (Tencent Music Entertainment) streaming services

QQ https://y.qq.com/ (requires you download app)

Netease Cloud Music https://music.163.com/ (Web site)

Please note your music will only be visible 4-6 weeks after the publish date.