1976
Max Neuhaus, Composer, Presents ‘Round’ in Rotunda of U.S. Custom House on Bowling Green: Vacant Landmark Opens Doors for Avant-Garde Music.” Letter from Creative Time to New York Landmarks Conservancy. [Undated], November 19 - 21, 1976

https://creativetime.org/programs/archive/1976/Roundsoundforconcavesurfaces/RoundSound.htm