Stanley Sheldon

He is the bassist that anchored two seminal 70s rock guitar slabs: Tommy Bolin's Teaser (1975) and Frampton Comes Alive (1976). 

Among the most prominent players to first utilize the fretless in a pop context, Stanley Sheldon is an educator, session player, and music historian who also collaborated with Cheech & Chong (Up In Smoke), Lou Gramm, Warren Zevon, and Delbert McClinton, to cite a few.  Stanley's work on  Peter's watershed twofer is, to my ears, among the finest live bass performances ever waxed. Sheldon's tone, phrasing, harmonic support, and use of rhythm and space is a tutorial on ensemble playing.