Apple Music App Icon. To delete an apple music song, open the app, tap “songs,” find the tune that won’t play, then hold your finger down on it. The app store has more than one million apps and games for your ios device.
While the apps are more hidden than actually gone, it’s managed to cause a few people to panic (including myself) when a standby app suddenly disappears. Installing music app from app store resolved the issue for me. Music app/icon still didn't appear;
The icon looks like an infinity sign (∞).
If your music app has disappeared, it’s merely the music icon you need to get back. The apple watch has a music app on it. I did resetting of the home screen like mentioned by others. Tap the download button (cloud icon with arrow) to restore the app.