[1] As a teenager, he led the Jeff Carp Blues Band, a group that included violinist Joel Smirnoff.

After some of Hooker's side men left, Carp and guitarist Paul Asbell were brought in as band members.

A reviewer of the reissued London Howlin' Wolf Sessions said "the late Jeffrey Carp provided fireballs of musical punctuation via his blistering shots on harmonica.

[21] Writing about a live concert by Earl Hooker in San Francisco in 1969, a reviewer said, "Mouth harpist Jeff Carp ... is magnificent - for my money better than Paul Butterfield (more musical, more inventive)".

[4] Rolling Stone wrote of Fathers and Sons "talking about harmonica playing, there’s superlative chromatic work by Jeff Carp ... he does a hell of a job".

[22][23] Carp died by accidental drowning in January 1973 after jumping from a boat in the Caribbean, where he had been on vacation with his girlfriend Scarlet Grey.