In a recent interview, Jimmy Page recalled his reaction after himself and the Led Zeppelin band members completed their first rehearsal during the week of 12th August, 1968, in a small room in London.
...that initial rehearsal was enough for everybody to say, ‘Yeah'
The Led Zeppelin members - Page, Robert Plant, John Paul Jones and John Bonham - would perform their first ever live show as the New Yardbirds on 7th September, one of a number of shows Page had inherited from the original Yardbirds when they split up. They began recording their debut album soon afterwards, but first, they had to make sure they worked as a unit, as Page said in an interview:
“What I knew was I’d never felt something like that before, and what I also knew was everybody else was in the same boat,” he said. “No matter what they’d done in the past, they’d never been in a situation where everything was so sort of intense and so heavily connected – profoundly connected, musically – on just our first meeting and getting together to play.”
“I’d worked with Robert at my house, going through the various things I wanted to do like ‘Dazed and Confused,’ ‘Babe I’m Gonna Leave You’… but that initial rehearsal was enough for everybody to say, ‘Yeah.’”
Looking back at the timeline of events, he noted: “We were recording in October of ’68; the Yardbirds were still going in July of ’68. You can imagine how quickly this whole thing came together.”