In this period, he also mentored a number of musicians, including Sandy Bull.

Sandy Bull was a composer and accomplished player of many stringed instruments, including guitar, pedal steel guitar, banjo, and oud.

Sandy Bull struggled with a drug problem for many years which seriously affected his performing.

Sandy Bull & The Rhythm Ace Live 1976 (2012, Drag City)

The Essential Sandy Bull (1974, Vanguard)

Two eccentric Americanists, Sandy Bull and Eugene Chadbourne, coincidentally performed solo guitar concerts in Manhattan on Monday night.

(Her son, Sandy Bull, a noted guitarist, died last year; she is survived by a daughter, Daisy Paradis, and a son, Digger St. John.)

Beloved mother of Daisy Hellman Paradis, Digger St. John and the late Sandy Bull.

My beard was about three days old, bordering on standard wino trim, and my eyes were totally hidden by Sandy Bull?

(1967), Ry Cooder, Sandy Bull, and Bonnie Raitt have expressed their respect for Staples.