mixed voice Performances Concert 57 [Collegium Vocale, de Cologne] Monday, January 21, 1974 Concert 57 [Collegium Vocale, de Cologne] Monday, January 21, 1974
mixed voice Performances Concert 57 [Collegium Vocale, de Cologne] Monday, January 21, 1974 Concert 57 [Collegium Vocale, de Cologne] Monday, January 21, 1974
