Music producer Quincy Jones attends the after party for 'Celeste And Jesse Forever' at the 2012 Los Angeles Film Festival held at Luxe Hotel on June 21, 2012 in Los Angeles, California. (June 20, 2012)

*Legendary producer and musician Quincy Jones had to clarify some things at the recent launch event for the music streaming service Spotify.

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Music mogul and one-time producer Sean “Diddy” Combs may have a great ear for music, having signed and cultivated such talent as The Notorious B.I.G., Faith Evans and 112, but according to Jones, the Bad Boy head honcho “couldn’t recognize a b flat if it hit him.”

Instead, Jones noted, “P. Diddy has a doctorate in marketing,” citing his clothing labels and success with Ciroc (his vodka company) as the rapper’s true talents, reports the Huffington Post.

Not all of Diddy’s business ventures have stood the test of time.  He recently closed Justin, the Atlanta restaurant he named after his son. The New York outpost of Justin was also closed, in 1997.

Jones curated a playlist for Spotify, as did the bands Tiesto, Rancid and Distrubed. The service hopes the playlists will help guide users through the millions of songs it has licensed.