She is professor emeritus , 1991 -- present .
She was professor of theory and composition at the University of Maryland 1965 - 70 , and joined the faculty of the University of California ( UCSB ) in 1971 .
professor is professor   , 1991 -- present .
She was professor of theory and composition at the University of Maryland 1965 - 70 , and joined the faculty of the University of California ( UCSB ) in 1971 .