I use to love this app. With iPhone6, unusable

I used this app to learn many fiddle tunes. Was able to isolate difficult sections and learn them. But when I upgraded my phone, suddenly Im not able to use any recordings in my phone so it is useless. They are not answering emails. Unfortunately it looks like Im going to have to buy a new app. Dont buy if you have a newer iPhone.

Fiddle Tuner about Slow Down Music Player