Step 1: Tap on the Music app icon to open the Music app. The Music app shows a multicolored musical note.
Step 2: In the Music app, tap on the Library tab at the bottom to view your music library.
Step 3: Browse or search your library to find a song, album, playlist or other audio to play.
Step 4: Tap on a song, playlist or other audio file to start playing it.
Step 5: While the song is playing, tap the pause button to pause playback or the skip buttons to change tracks.
Step 6: Adjust the volume using the buttons on the side of the iPhone or by swiping the volume slider in Control Center.