[Zubersoft]

I find that it's equally easy whether you use the companion app to add audio files or you import them from cloud or local storage. If you use the companion app, it will send the files over to the tablet and it will copy them either into the global music storage folder or the MobileSheets storage location (depending upon what you select when you import the audio file).  Playback speed can not be controlled currently, although the next update is adding support for controlling that. The same is true for pitch shifting.

Mike