Two musical highlights of mine were singing with a small Pomona College vocal ensemble a Josquin des Prez (pre-Bach) polyphonic mass in Old St. Mary's Cathedral in San Francisco and in a Catholic cathedral in Tijuana, Mexico. These were regular church services with all the mystique and mumble-jumble of the RC Church liturgy (I had strong agnostic leanings even back then, but no harm was done). Cathedrals are fantastic spaces in which to sing.

Cheers, S. in Seattle