Helen Gillet and James Singleton create music amid the ruins

The last service at Holy Trinity Catholic Church was held on March 22, 1997, eight years before Hurricane Katrina. Its neighborhood did not flood in 2005, but the interior nonetheless evokes memories of the storm.

Marigny Opera House interior. Photo courtesy of Dave Hurlbert, executive director of the Marigny Opera House.

Marigny Opera House interior. Photo courtesy of Dave Hurlbert, executive director of the Marigny Opera House.

Gutted of its altars, statues and pews, its colorful floor tiles are scuffed and dimmed by a film of dust. Ghostly water marks and smaller stormclouds of black mold mar the walls, and laths are exposed by fallen plaster. A vine creeps into the 1853 building through a 10-foot arched window.

Helen Gillet and James Singleton chose this space, now operating as the Marigny Opera House, for live recording of a cello-bass duo project that seized their imaginations before Hurricane Katrina, but had been put on hold.

The recording process is taking place in two sessions, one of which was March 5. The second will be Tuesday, March 12, at 4 p.m. Admission to the private event is by invitation only, but invitations are easy to come by. A $20 donation is suggested to support the project.

About 40 people were present for the March 5 performance, silencing their cell phones and squelching coughs as the music played. Bows brought forth moans of sorrow, and fingertips added infusions of pluck. The room’s echo was consciously incorporated into the sound. The musical passages seemed fairly brief; I wonder whether some of them will be expanded in the studio.

Gillet said that the March 12 performance would take shape based on listening to the recording obtained March 5. She said the second go-round might add electronic loops, but she was leaning against it.

Gillet and Singleton both place a premium on improvisation in their performances, and the setting will be an important element of the sound in the eventual recording, so the audience for the March 12 session can expect a rewarding experience.

The Marigny Opera House is at 725 St. Ferdinand St. in New Orleans, between Royal and Dauphine. An invitation to the March 12 performance can be obtained by contacting Helen Gillet or James Singleton on Facebook. There is also a Facebook event page for the performance.