The original lineup consisted of singer-songwriters Andrew Gold, Karla Bonoff, Kenny Edwards (founding member of The Stone Poneys), and Wendy Waldman.

[1][2] Newcomer producer Chuck Plotkin worked with the group, but their would-be debut album never materialized.

Only one track, Bonoff's "Woke Up This Morning", was released as a single, briefly becoming a regional hit in northern California but failing to win a wider audience.

Edwards, who had been a founding member of the Stone Poneys prior to the formation of Bryndle, recorded and toured with Ronstadt for about ten years beginning in the mid-1970s.

Waldman became a friend of Ronstadt and also toured with her for a period; they collaborated on a song, "I Want a Horse", for the 1980 Sesame Street LP In Harmony.