A program of the music of Claudio Monteverdi will be presented by the Oaks Chamber Singers on March 28, 4 p.m. at St. John's Seminary Chapel, Camarillo.

Selections will include an a cappella Mass written for four voices, and the "Magnificat" from the 1610 Vespers composed for a seven-part chorus. "Monteverdi's intricate style became immensely popular," said Annette Murphy, director of the Oaks Chamber Singers. "However, because of its difficulty, few choruses ever attempt this music in performance."

Gregorian chant and duets accompanied by cello, classical guitar and organ will also be featured, with classical guitarist Gregory Newton playing Renaissance selections.

Suggested freewill donation is $10. St. John's Seminary is located at 5012 Seminary Rd., Camarillo. For information, call (805) 388-8913.