I've been real slack in sharing some things, so I promise to try and do better. And with that, here are a couple of my favorite music related podcasts:
I discovered PSN a while ago and was hooked with the first episode I listened to. Al & Mike run a great show for professional and amateur recording musicians with lots of great information and some really cool guests.
They even had Leo Laporte on! If you don't already know, Leo Laport does the a few podcasts including This Week In Tech (TWiT), which is another favorite of mine.
There are lots of tips on recording and how to set things up in your home or project studio. They cover everything from different ways to mic intruments, to setting up for 5.1 mixing, and mixing entirely in the box. They get a lot of high-powered guys on there that have produced and recorded for big names like Gloria Estefan, Ricky Martin, and a ton of others. The lists go on and on.
I first heard "The Hand that Feeds" and "The Ghost that Feeds" in episode #13. Check it out at about the 12:00 mark for "The Ghost that Feeds". Very cool stuff.
In any event, if you're into music, recording, or production, you must check out PSN.
While 808 Talk isn't totally about music (it's about Hawaii), it features a lot of musicians from the 808 state. (BTW: 808 State was a fantastic group - definitely check out their music. No relation to the podcast.) They have interviews with some musicians from Hawaii and play a good amount of traditional Hawaiian music as well.
My favorite stuff is when they have slack key guitar on. Episode #47 has a fantastic track of two slack key guitars playing against/with each other. Check it out around the 11:50 mark. If you aren't familiar with slack key guitar, it's some of the most beautiful and haunting music around. It has a very open, thick, rich sound that you just don't get from other types of guitar.
Other topics on the show include local events in Hawaii (mostly in the music scene), history of Hawaii as it relates to today, and special things about Hawaii like traditional etiquette and places to see.
Well, I hope you check those out. I'm not in the habit of recommending anything that is below top notch, and I'm sure that you won't be disappointed.