Conversation so far:
What was session work?
Session musicians, studio musicians, or backing musicians are musicians hired to perform in recording sessions or live performances.
What kind of session work did Clarence White do?
Abandoning bluegrass temporarily, Clarence White switched from his Martin D-28 acoustic guitar to an electric Fender Telecaster, intending on becoming a studio musician like his hero James Burton.
Are there any other interesting aspects about Clarence White's session work besides what session work is and the kind of session work that he did?
As 1965 turned into 1966, Clarence White met Gene Parsons and Gib Guilbeau at a recording session for the Gosdin Brothers and he began to perform live with the duo

Question: What did he perform live?
Self-contained rewrite: What did Clarence White perform live with the Gene Parsons and Guilbeau duo?