1. Open the Apple Music app on your device.
2. Tap the "Browse" tab at the bottom of the screen.
3. Select the album, song, or playlist that you want to download.
4. Tap the "+" button next to the song title to add it to your library.
5. The song will now start downloading in the background. You can monitor the progress of the download by tapping on the "Library" tab and then selecting "Downloads".
Option 2: Using iCloud Music Library
If you have iCloud Music Library enabled, you can also download music to your device from iCloud. To do this, follow these steps:
1. Open the Settings app on your device.
2. Tap on your Apple ID at the top of the screen.
3. Select "iCloud".
4. Tap on "iCloud Music Library".
5. Make sure that the switch is turned on.
Once iCloud Music Library is enabled, any songs that you add to your library from the Apple Music app will also be downloaded to your device. You can also download individual songs or albums by tapping on the "+" button next to the song title and selecting "Download".