The post above is a sort of eulogy, but I don't know if it's the one the original poster wanted. The "am I supposed to sit here" quote comes from Prine's liner notes for a recording of a tribute concert.

http://www.well.com/conf/inkwell.vue/topics/307/Clay-Eals-Steve-Goodman-Facing-t-page07.html

And here's Prine singing a song he wrote with Steve Goodman:
https://www.youtube.com/watch?v=_ap-GLcEixs
"You Never Even Call Me By My Name"