DAVID GREENBERG has been in the music biz for most of his adult life: directing Grammy-nominated music videos, scripting the platinum-selling Kiss eXposed for Paul and Gene, product managed releases by Yoko Ono, Ringo Starr, Cesar Rosas, Robert Hunter, Bill Laswell, among others, and later as the Director of Marketing for a boutique agency working with the cr me de la cr me of the jazz world. (Now you know how he wangled those...