CLUBS Big band of Igor Butman. Igor Butman Club , 20.00. Anna Koroleva (vocals, saxophone) and Jump . Forte , 21.00. CONCERTS Early Russian avant-garde: premieres postponed for a century. V. Zaderatsky, N. Obukhov, A. Vustin, Y. Vorontsov, V. Tarnopolsky, S. Pavlenko, S. Rumyantseva. Soloist S. Savenko (soprano). Ensemble "Studio of New Music". Chamber choir of the Moscow Conservatory under the direction of B. Tevlin. Conductor I. Dronov.