A genre unto himself.
"Ideas came to Prince so quickly, they couldn't be contained on his own records, either with or without his backing band the Revolution. He masterminded albums by the Time and Sheila E, and gave away hit songs to the Bangles and Sheena Easton, shaping the sound of popular music in the process. There wasn't an area of pop music in the '80s that didn't bear his influence: it could be heard in freaky funk and R&B slow jams, in thick electro-techno and neo-psychedelic rock, and right at the top of the pop charts."
Stephen Thomas Erlewine, Allmusic.com
As Stevie Nicks was driving to Santa Barbara for her honeymoon, she heard Prince’s “Little Red Corvette” on the radio and was inspired. She wrote her hit “Stand Back,” which she admits uses the melody from “Little Red Corvette.” This had Prince’s blessing, though, and he even plays synthesizer on the song, although he is not credited on the album.
“He was so uncanny, so wild,” Nicks noted in the book Rock Lives. “He spoiled me for every band I've ever had because nobody can exactly re-create — not even with two piano players —what Prince did all by his little self.”
Stevie Nicks 'Stands Back' While Prince Works His Magic (ultimateprince.com)
His royal badness.
All about the groove.
It went from the underground club scene to the mainstream.
Polished sound and sophisticated production.