The Music of Heatmiser is a six-song demo cassette, recorded on April 29 and 30, 1992, at Sound Impressions in Milwaukie, Oregon. It was made available only at shows or by mail order.
Of the six tracks, "Lowlife", "Bottle Rocket", "Buick" and "Dirt" were re-recorded for Heatmiser’s first full-length album, Dead Air, while "Just a Little Prick" and "Mightier Than You" didn’t make the final cut.
The version of "Mightier Than You" on this release was later included for release on the Puddlestomp compilation. A live version of the song was released on the compilation 25 Years On the Edge: A Benefit For Outside In.