Dream House 78' 17" is a studio album by minimalist composer La Monte Young, artist Marian Zazeela, and their group the Theatre of Eternal Music (featuring trumpetist Jon Hassell and trombonist Garrett List).

According to Young, the lack of harmonic content of the sine waves makes accompanying them with regular instruments and human players extremely difficult.

The second composition, "Drift Study 14 VII 73 9:27:27–10:06:41 PM NYC (39" 14")", is played entirely by sine wave generators.

Regarding the extended run time, Young in the sleeve notes says that "Time is so important to the experiencing and understanding of the music in the record that every effort was made to make the record last as much as the original master tapes"; Young thanked Mr. Michel Blancvillain who made it technically possible.

The two inner sides of the record jacket contain a comment by Shandar founder Daniel Caux, plus extensive original notes penned by La Monte Young himself about the music, its structure and its history.