Review: Coleccion Nocturna

Mr. Felder's powerful Coleccion Nocturna, a 1983 work for piano and clarinet was the polar opposite of the Feldman. Extroverted and kinetic, sometimes harmonically spiky sometimes sweetly lyrical, it demanded a more conventional virtuosity. Jean Kopperud's agile clarinet playing and her ability to move easily between graceful, song like lines and brash passages full of leaps and incongruities served Mr. Felder's music well.