I used Amazon music for several years and downloaded hundreds of songs through the app. After adding HD music, the app went downhill fast. Downloaded songs always play through data/internet instead of using the download itself. Entire downloaded albums got removed just to manually re-download a different version of the same album. But worst of all, every time I try to listen to a song, the app will freeze/close 2-3 times before playing correctly. Do yourself a favor and get Spotify instead.