Gary 'Magic' Marker is a bass guitar

Bass guitar

The bass guitar is a stringed instrument played primarily with the fingers or thumb , or by using a pick....

ist and recording engineer best known for his involvement in various psychedelic rock

Psychedelic rock

Psychedelic rock is a style of rock music that is inspired or influenced by psychedelic culture and attempts to replicate and enhance the mind-altering experiences of psychedelic drugs. It emerged during the mid 1960s among folk rock and blues rock bands in United States and the United Kingdom...

 bands of the 1960s.

A bass player with jazz leanings, who had studied at Berklee College of Music

Berklee College of Music

Berklee College of Music, located in Boston, Massachusetts, is the largest independent college of contemporary music in the world. Known primarily as a school for jazz, rock and popular music, it also offers college-level courses in a wide range of contemporary and historic styles, including hip...

, Marker was a member of the Rising Sons

Rising Sons

Rising Sons was a Los Angeles, California-based band founded in 1964. The original lineup was Ry Cooder , Taj Mahal , Gary Marker , Jesse Lee Kincaid and Ed Cassidy...

 between 1964 and 1966, along with Ry Cooder

Ry Cooder

Ryland Peter "Ry" Cooder is an American guitarist, singer and composer. He is known for his slide guitar work, his interest in roots music from the United States, and, more recently, his collaborations with traditional musicians from many countries.His solo work has been eclectic, encompassing...

 and Taj Mahal

Taj Mahal (musician)

Henry Saint Clair Fredericks , who uses the stage name Taj Mahal, is an American Grammy Award winning blues musician. He incorporates elements of world music into his music...

. A 1992 retrospective CD has been issued of their work, Rising Sons on Columbia CK 52828.

During this time he became friendly with Don Vliet

Captain Beefheart

Don Van Vliet January 15, 1941 December 17, 2010) was an American musician, singer-songwriter and artist best known by the stage name Captain Beefheart. His musical work was conducted with a rotating ensemble of musicians called The Magic Band, active between 1965 and 1982, with whom he recorded 12...

.