Sub-series consists of audio recordings of Resurection Mortuorum by Oliver Messiaen, Meow, Meow by Rodolphe Burger, two unknown sound recordings on reel-to-reel tapes, and other recorded works.

Sub-series consists of audio and video recordings of poetry readings and other performances by Blaser of his written works.

Sub-series consists of incoming and outgoing correspondence between Blaser and family, friends, and colleagues. Material includes handwritten and typed correspondence, as well as facsimile correspondence. Additional material includes sketches, newspaper clippings, pamphlets, and other textual material sent to Blaser.