1. Copyright issue: The copyright ownership of music works is the key factor whether the music platform can provide music.

2. Contract problem: There are contract constraints between the music platform and music production companies and record companies. If the contract expires, the contract is terminated or there is a dispute, the platform will be required to remove the relevant music.

3. Violation: The music platform violates relevant laws and regulations, user agreements or community norms, which will cause the platform to be required to remove relevant music.