The eponymous album by the piano-playing siblings—all of whom attended the Juilliard School—includes such classical favorites as Dukas' The Sorcerer's Apprentice, Rimsky-Korsakov's Flight of the Bumble Bee, and Grieg's "In the Hall of the Mountain King" from Peer Gynt. Four of the tracks are arranged for five pianos; the others are performed as solos or duets by various combinations of the siblings.

Elsewhere on the chart, Yo-Yo Ma's collection of Ennio Morricone music moved back into the second spot after being displaced by Andr_ Rieu's Tuscany last week. The Mormon Tabernacle Choir's Choose Something Like a Star jumped from number six to number four, while its Peace Like a River re-entered the chart at number nine after dropping off in February.

Josh Groban's Closer continued its long run atop the classical crossover chart. Movers included violinist Lucia Micarelli's Music From a Farther Room, which jumped from number seven to five.