The Theatre of Eternal Music gave performances that consisted of long periods of sensory inundation with intervals of unconventional harmonic combinations, which moved slowly from one to the next by means of "laws" laid out by La Monte Young regarding "allowable" sequences and simultaneities. Combined with Young's interest in sustained tones and Hindustani classical music was Tony Conrad's knowledge of just intonation and the mathematics of tuning, along with his introduction of electronic amplification. The group was initially defined by Young's jazz-influenced saxophone improvisation, but soon moved fully toward drone music under the influence of Conrad and Cale. In 1964 the ensemble contained Young and Marian Zazeela, voices; Tony Conrad and John Cale, strings; and later in 1965 Terry Riley, voice. Many of the group's performances took place in a Young and Zazeela's New York loft. The Theater of Eternal Music's discordant sustained notes and loud amplification influenced Cale's subsequent contribution to the Velvet Underground in his use of both discordance and feedback. Cale and Conrad have released noise music recordings they made during the mid-sixties, such as Cale's Inside the Dream Syndicate series. Most of the pieces performed by the Theatre of Eternal Music have long titles. Likewise, the works are often of extreme length, many pieces having no beginning and no end, existing before and after a particular performance. The Theatre of Eternal Music ensemble’s masterwork, begun in 1964, is titled The Tortoise His Dreams and Journeys and is divided into several sections, of which "Map of 49’s Dream: The Two Systems of Eleven Sets of Galactic Intervals Ornamental Light-Years Tracery," is the only one of which a fragment can be found on the disc Dream House 78' 17".
Dispute over credits
Few of the group's recorded performances from the 1960s have ever seen public release, and remain in the possession of Young despite protest from other group members. A dispute over compositional credit developed between Young and members Conrad and Cale. Requests for copies of these recordings were met with Young's insistence that they sign an agreement acknowledging Young as the sole composer of the music, which they refused to do. In 2000, the record labelTable of the Elements released a bootleg recording of a 1965 performance as Day of Niagara; the recording was not authorized by Young. Young responded to the complaints of Conrad and Cale in an essay which reaffirmed his status as composer.
Discography
Dream House 78' 17" - credited to La Monte Young / Marian Zazeela / Theatre of Eternal Music
Inside the Dream Syndicate, Volume I: Day of Niagara - credited to John Cale / Tony Conrad / Angus MacLise / La Monte Young / Marian Zazeela