According to Kooper, he wasn't even supposed to be on the record. He snuck into the studio while they were starting to record a take -- when Tom Wilson was at lunch or something.As I said before, Tom Wilson was the producer of the record. He hired all the musicians, oversaw the arrangement, and oversaw the final mix of the song that was presented to the label. In fact, Al Kooper, who played organ on the session, was only there as a friend of Tom. The concern the label had was that it was 6 minutes long. But they tested the song among some radio listeners, and the reaction was good enough for release. Some stations faded out the song after the second chorus. I've heard airchecks from several radio stations that did that. The song peaked at #2 on Billboard and #1 on Cash Box. It was his first big hit, and the radio airplay brought his music to the attention of mass audiences.
Keep in mind that Dylan's label, Columbia, was owned by CBS. The purpose of releasing singles at that time was to gain radio airplay.
No one in the studio really knew that Kooper wasn't supposed to be there. The engineer didn't care or didn't know, either.
Being that Kooper was a guitar player, and they already had Mike Bloomfield on guitar in the session, Kooper made his way to the organ, and when the take started, he played all the little chord riffs (that we know so well) about an eighth note late, because he didn't really know the song.
When Wilson found out about it afterwards, he was furious.
Then Dylan walks in. Dylan wants to hear the take. Wilson starts playback. Dylan notices the organ fader is all the way down. "Why don't you turn the organ up, so I can hear it?" says Dylan. "Oh, that's just Al Kooper messing around, it's not even supposed to be in there," says Wilson. "It's just junk..."
"I don't care," says Dylan. "I want to hear it! Turn it up." Wilson turned it up.
The organ part ended up staying, becoming part of the hit, and that style of organ playing influenced a few artists for a few years afterwards.
Strange how some decisions are snap ones, completely unexpected, and the results become hits.
Sorry for veering away from the subject here.