Joan builds a layered atmosphere of soaring vocal tones. Her melodic phrases loop according to their own natural periods. Each phrase is represented by a colored moving column, positioned according to the location(s) where Joan created it.

Messa di Voce
by Tmema (Golan Levin and Zachary Lieberman),
Jaap Blonk and Joan La Barbara
Developed 2003 / Performed 23 February 2009 in
"The Human Voice in a New World Concert Series"
Frederick Loewe Theater, New York University
Presented by the Electronic Music Foundation.
tmema.org/messa/