Why do my songs disappear

Have you tried restoring the iPod in iTunes? Connect the iPod to your computer, click the iPod icon in iTunes, then click “reset”. This will erase your iPod and put a new copy of the iPod software on it, making it exactly the same as when you first got it. Then, you can load your songs back on it, and hopefully this solves the problem.

If you switch between Apple ID accounts in the iTunes Store, the operating system automatically disables the corresponding item in the settings. This behaviour is not clear. However, if you activate the option again, all saved songs and playlists become available for listening in the library again. The function is located in the "Settings" — "Music". In principle, you can fix this problem yourself. But if it doesn't work out, it's better to listen to music on the Y2mate platform, where there are no such problems.