iTunes Match 应该只允许在线播放，不允许下载

iTunes Match
If you want all the benefits of iTunes in the Cloud for music you haven’t purchased from iTunes, iTunes Match is the perfect solution. It lets you store your entire collection, including music you’ve ripped from CDs or purchased somewhere other than iTunes. For just $24.99 a year.

允许下载的歌曲应该只限于之前用对应帐号在itunes中购买过的

自己的那些非itunes购买歌曲，匹配后都在云里只能放不能下