Deliverance the song sounds exactly like Wow from Plectrum Electrum. Sure the lyrics are different but the beat music timing and instrumentation are almost identical, you can literally sing Wow over this song.

Now we know where the framework for that song came from imo, he dipped into the vault and created something different out of it.

[Edited 4/19/17 10:16am]

See http://prince.org/msg/7/441173