You can tell from the way the guy at the Half Beat Club introduced Joni Anderson on Oct. 21, 1964 that she did not yet have much clout in this world. “Tonight we have for your entertainment Joni Anderson,” the man, probably the club’s owner John McHugh, tells the small and lively crowd. “Joni’s been appearing here for the last two weeks — and will be for the next three weeks, starting Monday.” He leans on the second half of that sentence a bit, the part that encompasses his young performer’s immediate future.
https://www.macleans.ca/culture/arts/tracing-the-remarkable-rise-of-joni-mitchell/