AudioStretch is great!
I keep finding myself coming back to this app more and more lately. The more music you have to tweak to your liking, the better. Now, you can use you music files that are in your iCloud. This really got me back into using it again! Recommended! Especially if you like and/ or are familiar with audacity. Think audacity with less special effects.
Ifkdangr2016 about
AudioStretch, v5.1.2