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Lea Bertucci, Double Bass Crossfade

Composer Lea Bertucci's composition Double Bass Crossfade positions two double bassists at opposite corners of the Knockdown Center’s 50,000 square foot main room. The instruments are wirelessly amplified, allowing the performers to slowly move across the room over the course of 40 minutes, meeting in the center and then crossing to each other's original starting positions. As the performers change their position, the sounds they play are dynamically routed from speaker to speaker according to their location, creating in their wake a mutable, engulfing sound-field. With James Ilgenfritz and Sean Ali.

This performance was part of AUDITORIUM, an extended evening of site-specific electronic and electroacoustic performances organized by artists/curators Lea Bertucci and Tristan Shepherd on April 12, 2015. The focal point for the event was a custom-installed 10-channel sound system hung throughout Knockdown Center's cathedral-like space . The project commissioned new works from composers, instrumentalists, and audio artists to develop works uniquely suited to the site.


Clocktower Exhibits & Events


Clocktower Exhibits & Events is home to an archive of interviews with artists, curators, musicians, organizers, and more who have participated in Clocktower exhibitions and events throughout our organization’s history.

Many of the below recordings were documented while Clocktower was in the midst of a transformation. The original name, The Clocktower Gallery, was given to the exhibition, residency, and performance space in TriBeCa, founded by alternative spaces movement pioneer Alanna Heiss in 1972. After 2001, the Clocktower Gallery re-inaugurated its exhibition programming in 2005 as part of MoMA/PS1 and, after 2008, under the auspices of Art International Radio. In 2013, we moved on from our downtown Manhattan location, and have since renamed the organization Clocktower Productions, a title which encompasses our radio, exhibition, and event programming.

For more Clocktower history, listen to The Clocktower Oral History Project, in which such figures as Vito Acconci, Bill Beirne, Colette, Jeffrey Deitch, Mary Heilmann, Jene Highstein, Ann Magnuson, Richard Nonas and Joel Shapiro reflect upon their experiences with this unique New York space. Organized by artist Nancy Hwang for the Fall 2009 AVANT-GUIDE TO NYC: Discovering Absence exhibition at apexart.

NB: Clocktower Radio was launched by MoMA/PS1 in 2004 as the Web's first art radio station. It has been independent since 2009 and is licensed to host content created under PS1 management. Programs produced prior to 2011 may refer to our earlier URLs and station IDs, including,, and Art International Radio. For the complete history of Clocktower Radio, read our Mission & History section. 


Open Territory


Musical innovators share their work in a combination of an interview. Including Max Neuhaus, Miles Davis, Christian Marclay, and more. 

Knockdown Center Radio Channel


A series highlighting lectures and presentations on social and cultural issues produced by Knockdown Center, and made available here in partnership with Clocktower Radio.


Experimental Composers


Artists who explore the edges of genre and technique.