Although iOS comes with a native Apple Music app ... MusicHarbor for free on the App Store, but some features require in-app purchases to be unlocked. You can use it on iPhone, iPad, and Mac.

There are a lot of music apps out there ... It's a simple app that works brilliantly, filling a void in the hearts of most iPhone-carrying songwriters. You select the key you want to play in ...

Did some of the music disappear from your iPhone ... download songs to play offline, those songs won't appear in iTunes Purchased tab. Instead, you can redownload those songs using the Music app.