First off, we're going to start with Miles Davis' Jack Johnson.

IMO, this is the best rock album to come out of the psychedelic era.

It's two tracks, roughly an hour total. You can listen to it here: https://vimeo.com/59238431

Pay attention to the fact that you don't hear a trumpet (and therefore, you don't here Miles) until two minutes and twenty seconds in to the track, and just before Miles comes in (right at the two minute mark) all the music dies down, and almost stops completely. (More to come.)

If you've never listened to any Jazz-Rock fusion stuff, or anything from Miles in the 70s. You're in for an absolute treat.

Before recording this album, Davis said he was putting together "The Greatest Rock and Roll band you've ever heard of."

Listen to the album, and I think you'll agree that he damn near succeeded.

So, Miles doesn't show up until two minutes in to the first track. What gives, right?

He wasn't in the studio yet. He was running late. This was day one, take one, and John McLaughlin was just dicking around in the studio. The engineer was recording, because when Jazz musicians are in the studio the engineers were always recording, lest they miss something.

He got some other musicians involved, and they continued to dick around.

Miles shows up, and everyone slows down, preparing to stop dicking around and record some real music.

Instead, Miles urges them to continue.

He picks up his trumpet, and jumps in to the middle of this impromptu jam, and turns it in to what is widely recognized as the landmark album of the Jazz-Fusion movement.

Some people call it the greatest rock album of all time.

I wouldn't go that far, but for what it actually is, it's astounding.

Keep in mind, though, this is the same Miles Davis who, in 1987, was invited to dinner with the Reagans. When Nancy Regan asked him what he'd done to merit being included in the dinner, he looked at her with a straight face and said "Well, I've changed the course of music five or six times. What have you done except fuck the president?"

So, while they were recording Jack Johnson (which was used as a soundtrack to a film about the boxer of the same name, and has nothing to do with acoustic bro rock.) they recorded something like 20 hours worth of material.

They kept reworking and re-recording stuff.

There is a record of this in "The Complete Jack Johnson Sessions" because this was 1970, and the studio knew to keep recording when Davis was in the building.

But after all of that, they release day one, take one. They release the fluke.

That kind of serendipity, that's Jazz.