They do have dedicated apps don't they? https://play.google.com/store/apps/details?id=com.google.android.apps.youtube.music&hl=en_GB https://play.google.com/st

They do have dedicated apps don't they? https://play.google.com/store/apps/details?id=com.google.android.apps.youtube.music&hl=en_GB https://play.google.com/store/apps/details?id=com.google.and... https://play.google.com/store/apps/details?id=com.amazon.mp3&hl=en_GB https://play.google.com/store/apps/details?id=com.amazon.mp3...