Youtube Music 最近几个月都不断改进播放歌单 Play List 上的功能，例如早前就推出了 Collaborative playlists 可以跟其他 Youtube Music 用家一同创作编制 Playlist，还有 Profile Page Playlist 可以查看其他用家公开的 Playlist，最新 Youtube Music 就增设了 Assistive Playlists 功能。
Assistive Playlists 就是由 Youtube 向用家提供推介适合放于歌单的歌曲。它会依据 Playlist 名称, Playlist 内其他歌曲以及用家过往的听歌记录，向用家推介歌曲。当用家编辑 Playlist 歌单时就会看到最多 7首推介的歌曲，用家可以按喜好将歌曲加入至 Playlist，若果想查看其他推介选择，只要 Refresh 一下 Playlist 就会看到另外7首推介歌曲。就算 Playlist 只有少量歌曲甚至是只得名字，Assistive Playlists 也可以作出推介建议。
Sometimes you have a great playlist idea in mind, but don’t know what songs to add. With the new assistive playlist feature, we will suggest relevant songs based on signals such as playlist name, existing songs in the playlist, and user listening history.
Source: Youtube Blog
