
The first time that you download music to your device, you might see a message that asks if you want to download music automatically.

If you want to download music automatically Choose View > All Music to see all of your music. Then, from the menu bar at the top of your computer screen or the top of the iTunes window, choose View > Only Downloaded Music. On your Mac or PC: In iTunes, click Library.

Tap Library in the upper-left corner to see all of your music. A message that says "Showing only music on this " appears at the top of the screen.

Take a look at the information below to learn more. In the future, you can enable the option to download music automatically when you add it to your Library. You'll be able to save time by downloading an artist's list of songs from your Library, rather than tapping on the individual songs themselves. While there's no immediate way to download all of your songs at once, you can download either the individual songs, albums or playlists. I see you're trying to download multiple songs to listen to offline from Apple Music.
