Working on the playlists for Utah Phillips' Loafer's Glory programs, I frequently have "???" in the box for "Artist/Performer". Learning or knowing the tune is not the problem; more often than not that's relatively easy. I can usually locate the author or origin of a song quickly on the Internet. But without access to sound clips, I am limited to my own collection in finding out whose recording I'm listening to on Utah's program. An archive like the one proposed could simplify the job a lot, since I can't go checking the Library of Congress or the Southern Folklife Collection.   On several occasions I have ordered CDs from artists as soon as I found out who they were/ who I was listening to.