Conversation so far:
what was Stevie Ray Vaughan's very first recording?
In September 1970, Vaughan made his first studio recordings with the band Cast of Thousands.
what year did he tour 1st?
Vaughan toured with the Cobras during much of 1977.
did he have any other tours?
For the next two-and-a-half years, he earned a living performing weekly at a popular venue in town, the Soap Creek Saloon.
any other bars ?
the newly opened Antone's, widely known as Austin's "home of the blues".

Question: what year did he hit it big?
Self-contained rewrite: What year did Stevie Ray Vaughan score major success?