It's not hard to see the invisible hand of the artists' respective record label PR deparments in this. McCartney's tour is now underway, and there is a new reissue of Coltrane's Love Supreme that came out recently as well. Still, both good segments for my money.
If you dig around in some of the past radio segments on the Coltrane one, one of them mentions the Saint John Coltrane African Orthodox Church. There's some great religious art featuring Trane on the website, and of course, they must have some of the best devotional music around.
The Register gleefully reported on the research: a fun article, if you're of a technical bent.
A biography is coming out January 2003 as well.
Check 'im out. Why the heck do I have "soul" listed down there? Listen to some Lambchop (the lead singer of which, Kurt Wagner, recorded an EP with Rouse) and check out the tune Under Cold Blue Stars(sorry - icky bn.com sample link).
Nonetheless, it's not without insight:
I make no guarantees that you haven't seen the links I present already. I work for a living, unfortunately I can't be 100% timely. But I do promise that if you come back every weekday, there'll be a new tasty morsel to satisfy the curious music nerd palate.