Critic and art historian Christoph Cox will give a free talk tonight entitled "From Object to Process: Time in the Sonic Arts" as part of the MATA Festival, a decade-old event for young genre-defying composers in New York. The lecture will begin by examining sound art and music in the 1960s, an era marked by great cultural anxiety around time in relation to advances in technology (a topic elaborated in Pamela Lee's Chronophobia: On Time in the Art of the 1960's), and will continue by charting the direction set by the artistic experiments coming out of this period. Cox will devote specific attention to "the shift from time as a measured whole to time as fluid duration." The lecture begins at 7 pm tonight at the Brooklyn Lyceum. A discussion with composer and sound artist Micah Silver will follow Cox's presentation. For more information about the lecture and other activities related to the festival (including concerts and sound installations), visit MATA's website. - Ceci Moss