We ended our very fun day in a sala of our neighborhood chiesa, the 11th-century Romanesque church of San Gregorio Maggiore to hear beautiful music set amongst history.  A poster in one of the piazzas caught our eye:
The voices of the 35 members of this amazing choir joined together in a mesmerizing way.  Steve and I thoroughly delighted in every song from sacred music of the 1500s to modern American music by Eric Whitacre.  Our favorite, however, was the madrigal by Carlo Gesualdo (1566) O la, o che buon eccho!  The director divided the choir and placed half in the balcony.  A beautiful "duet" between the two groups echoed above the heads of the audience.  A wonderful ethereal effect!  We stayed for a few moments after the finale and spoke with the choir.  What a special night.  Walking home, in the cold, under the stars just made the entire day...unforgettable!