In 95 years of life, Carl Ruggles composed only 84 minutes of music - including his masterpiece for orchestra, "Sun-Treader". Charles Seeger called it "dissonant counterpoint". Charles Ives called it simply "strong, masculine music". In 1980, Michael Tilson Thomas recorded all of it for a long-out-of-print 2 LP set that has never been reissued on CD. Today, with almost none of the music from this significant American composer commercially available in any form, the Internet Archive has performed a valuable cultural service by hosting a 24-bit lossless rip of the Tilson Thomas set. It is powerful stuff.