A champion of American new music, pianist Neely Bruce beautifully performs these now classic studies in a repetitive, yet highly engaging minimalist style. Each of the preludes expands upon an initial figure or pattern and travels through modalities suggesting world music of all sorts and, at times, historical periods. Some preludes are elegantly lyrical, some are plaintive and elegiac, and others rush along with whirling dance velocity in an eternal universe. Taking a cue from Cage's Études australes, Duckworth has the pianist depress selected lower keys, resulting in an accumulating drone that reverberates throughout each composition. This nearly hour-long series certainly bears comparison with, and arguably belongs with, the repertoire of other keyboard classics such as the Shostakovich Preludes and even the J.S. Bach Well-Tempered Clavier.