hah i got this tip from a drunk dude at my mom's birthday party, but npr has these two kick ass music podcasts, open mic and all songs considered.
open mic gives you one song every couple of days and its usually pretty good.
the better of the two is deff all songs considered. this guy takes you through some good music. But also, he releases full concerts. Myep, the entire set, and pretty good quality for live recordings.
it's sick too for me, because i live just outside of DC, and all the live recordings are from the local shows, which i frequent, so i can relive the concert.
gotta love the internet