http://www.vulture.com/2018/02/quincy-jones-in-conversation....
David Marchese: You’re talking about business not music, but, and I mean this respectfully, don’t some of your thoughts about music fall under the category of “back in my day”?
Quincy Jones: Musical principles exist, man. Musicians today can’t go all the way with the music because they haven’t done their homework with the left brain. Music is emotion and science. You don’t have to practice emotion because that comes naturally. Technique is different. If you can’t get your finger between three and four and seven and eight on a piano, you can’t play. You can only get so far without technique. People limit themselves musically, man. Do these musicians know tango? Macumba? Yoruba music? Samba? Bossa nova? Salsa? Cha-cha?