Yeah, that's a great analysis you've got here qjamesfloyd! I can't resist adding some comments over yours, so bear with me.
1. Of course, The Beatles is like The Bible for musicians... And it's funny that "Eleanor Rigby" became the first time in the programme, where Mark got technical and started talking about chords. Because every musician what I know study these brilliant songs, you almost can't afford not to study them!
2. I think the omission of Chet Atkins is tied to the sheer amount of stuff he's done... I mean, apart from the fact that every track could be on the programme, he also produced a ton of brilliant songs, they also played together on an album. I don't know whether Mark is going to do themed episodes, but you certainly can make on entirely based on Chet!
3. The song "In The Gallery" probably has the most reggae-ish rhythm so far, also "Once Upon A Time In The West" come close, things like that. Got to say, I was a fan of reggae from as soon as I remember. I remember watching The Fifth Element when I was 8 or 9, and there was this scene where they would set-up a space shuttle for a flight, and there was cool reggae music. This is what reggae's for — for being cool...
4. My dream is for Mark to do a whole album filled with B-sides because he has a lot of them and they're all brilliant! But outtakes? I don't think he has a lot of outtakes really. With Mark being a perfectionist, the word that he's not a fan of, I strongly suspect most of the stuff that's not perfect just find its way into the bin.
5. Yeah, alternative/indie music these days is the source for good music, smaller bands, independent musician... I have to say, that alternative/indie is often just a box, most of the time it's still blues/folk/bluegrass musicians. As Mark said, finding a real thing is hard, but alternative/indie box is one of those places for sure!
6. Jaaaaaaaaaaaaaaaaaaaaaaaaaaaaaz. This is something I loved since I was born practically, I'm obsessed with jazz. So I'm happy every time Mark plays some swinging jazzy tunes! And yes, I hope to hear more of jazz from him. It's funny, when "Down The Road Wherever" was coming out on the Blue Note label, it gave the impression it'll have jazz feel on it. But nope, it was a classic Mark's album, but with a touch of jazz, yes. And it was always funny to me, that Mark has all those brilliant jazz musicians in his band, who can play virtually anything, and yet they all basically "strumming away" simple songs. Because the songs are so good they don't need anything more.
7. Mark is a happy guy, he has no daytime job all right. So he can research for a song for a month if he wanted to, so no surprise he read a lot about all the music and such
8. I suppose, in that regard, Cajun music is just like reggae music, it's got coolness running before everything else, and it happens a lot with styles of music that sounds so distinctive. So you're not looking necessarily for the greatest musical experience here as much as for a setting up a mood.