I'm the developer of a music player for practice called Soundproof which is already in the store at https://itunes.apple.com/app/id889019884 . It makes it really easy to repeat tracks or parts of them, with support for count in, tracking practice time and setlists.
We designed the app from the start to be accessible for everybody, with big easy to hit controls and voice announcements of tracks, but now I am trying to finish up the VoiceOver support.
I'm looking for beta testers who are real VoiceOver users, because I want to make sure our support is really good. Our player and count in interface in particular needed special consideration to provide a good VoiceOver experience, to announce the markers that have been set on the timeline for example.
I'm especially interested in anybody who play an instrument, sings or needs to listen to audio for other learning, for example scripts or foreign languages.
If you're interested please mail me at firstname.lastname@example.org and I'll start the process of getting you into the beta program.
Thanks in advance