Robison was one of the earliest female vocalists of a rock band, and she was involved in other acts after the group's disbandment, including the musical Hair.

By her early teens, she also sang in her local church, and had the ability to perform in multiple genres including folk, pop, and rock.

She met contemporaries like David Crosby, Dino Valenti, and future husband Robbie Robison, who was later a part of the band Clear Light.

A year later, future PBC member John Merrill met Barbara Robison after a gig in The Insomniac, located in Hermosa Beach.

Robison accepted, and she made her recording debut in January 1965 by providing backing vocals to the folk-rock single that included "Love Her Everyday" b/w "Or Else You'll Cry" under the group name The Young Swingers.

In 1965, Alan Brackett joined; a drummer named Doug Rowe was added but soon replaced by Spencer Dryden.

[5] By May 1966, Dryden left to replace Skip Spence of Jefferson Airplane,[8] and "Sandi" had to call quits in June to soon deliver her child.

She, along with Merrill and Brackett, added two more members for their new group including drummer Jim Voigt and guitarist Lance Fent.

[11] The Peanut Butter Conspiracy charted once on the Billboard Hot 100 with their single "It's A Happening Thing", which featured Robison sharing vocals in harmonies.

In venues like the Whisky a Go Go and the Fillmore Auditorium, the band opened for groups like Big Brother and the Holding Company and Jefferson Airplane.

[18] While she was working on her soundtrack commitments, Robison joined the Los Angeles counterculture-inspired musical production, Hair.

Robison continued to be involved in sessions of Hair even after she and Merrill began performing as a duo in local clubs.

Robison moved to Glendora, California and formed a band called Rush and began touring in state and in Arizona in mid-1973.

The Young Swingers The Ashes The Peanut Butter Conspiracy Posthumous The six original versions, sung by Lynn Carey and Barbara "Sandi" Robison: "Find It", "In The Long Run", "Sweet Talkin' Candyman", "Come with the Gentle People", "Look On Up at the Bottom", "Once I Had Love"