Because the first file is 2.1 Gigs, I've not included it as an enclosure to be passed on through your aggregator, but rather a link to the page that hosts the 2 files that run for a little over an hour.
From the IA site:
"Charles Amirkhanian traces developments in 20th Century text-sound composition, including recorded examples by such historical figures as Kurt Schwitters, Raoul Hausmann, Ernst Toch, Gertrude Stein, Mauricio Lemaitre, François Dufrene and Henri Chopin. More modern examples of American work follows. Production of this program funded by the Berkeley Civic Arts Commission."