The Westminster Organ Concert Series continues its 38th season on Sunday, October 15, at 4:00 pm, with a concert by Les Canards Chantants. An a cappella vocal ensemble specializing in music of the Renaissance, the “Singing Ducks” will present a program of music from the time of the Reformation. The program, “From Transcendence to Transparency,” marks the 500th anniversary of the Reformation with music by Clemens non Papa, Johann Walter, and Thomas Tallis. Organist Jonathan Schakel will also join the ensemble. The concert is free and open to the public and will be followed by a reception.