Open QQ Music, click My, click the plus sign next to the self-built song list, create a new song list, edit and enter a name, click Save, click Add Song, choose to add 20 songs, choose a song to play, click Play Mode, select list loop, and then return.

If you want to vote for Su Xinhao's Zuo Hang songs, just create a song list, add their songs and play them in a loop.