sleeve note
noun UK uk/ˈsliːv ˌnəʊt/ us/ˈsliːv ˌnoʊt/ (US liner note)
（唱片的）封套说明
information about a performer or a performance that is supplied with a sound recording
According to the sleeve note, she recorded all the songs at home in her attic. 根据唱片封套上的说明，所有的歌曲都是她在家里阁楼上录制的。