How do I change the music of the alarm on the IPhone?

Hi there - when in the Alarms app, tap Edit, then tap Sound, then at the top of the list of options you'll see Songs. From there you can tap Pick a Song and you will be able to search your entire Apple library.

Open the Clock app on your iPhone. Tap on Alarm (Bottom Row) and then press the Plus (+) (Top Right) to add an alarm. You will see in the window that opens up with an option to change the Sound of the Alarm.

Axel F.