The St. Petersburg Chamber Choir and their director, Nikolai Korniev, show off subbasement basses, soaring sopranos and a rich, well-blended sound in "Russian Easter," a group of eleven settings for Easter worship by Alexander Grechaninov, Dmitri Bortnyansky and other masters of Russian church music. The compositions were written variously from the 18th century through the present, but all stay true to the spirit and aesthetic of the Orthodox tradition. Those who find plainchant a little on the monotonous side but are still looking for a spiritual element in music will find much to admire and enjoy in these beautifully sung presentations.