As a composer, costi has worked primarily with dance and theater groups, including a stint as Music Director with The Cabiri aerial dance troupe.
As a performer, he was a bandleader for 16 years, leading the Seattle-area Balkan party band Ensemble Sub Masa from the violin, and occasionally finding time to play or sit in with rock, punk, and noise bands, and the occasional dance orchestra.
His education includes:
•BA in Music from the Naropa Institute, including twelve quarters of college-level rhythmic vocals, with a minor in movement studies
•Graduate-level studies in Film Scoring
•Graduate-level ethnomusicology studies in Ottoman, Balkan, Romanian, and Romanian Rromani music in theory, fieldwork, and performance