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This is during the recent weekend in LA- Christopher Vick, working away on the music. Note George in the background.
Looks like a living room studio.
Source page is on Facebook:
First I heard of using regular buildings as studios, was "The Band", using the house that came to be known as, "Big Pink":
(Do people even know that "The Band" started out in an oddly unknown status and the band behind the rock music of Bob Dylan. No one knew anything about them till their own record came out (without Dylan):