Producer, arranger and session player, allegedly the subject of Jumpin' Jack Flash...
Significant. File under: Back Room Operators
An introduction
Discography:
In the music library: Three Piece Suite
Links: Wikipedia AllMusic Discography at Discogs
SpectroPop Jack Nitzsche and Neil Young
Rock & Roll Renaissance Man Jack Nitzsche Dead at Sixty-three
Jack Nitzsche – Wizard of the 60s Pop Sound
Obituary: The Guardian