The Great Organs of the First Congregational Church of Los Angeles.

With 346 ranks, 265 stops, 233 voices, 18 divisions, and in excess of 20,000 pipes speaking down from the Nave and Chancel, and from the South and North Transept Galleries they form the largest church organ installation in the United States.

Maestro Olivera performed to an appreciative large audience on June 4, 2006 as a part of their 2005-06 Concert Series.