When “Succession’s” Brian Cox is onstage in London as James Tyrone in “A Long Day’s Journey Into Night,” could he be accompanied by the sound of a New London foghorn?

It’s possible.

Cox, the erstwhile Logan Roy, is starring in a West End production of Eugene O’Neill’s autobiographically inspired drama, which is set in a thinly veiled version of the family home in New London.

The sound engineer for the production contacted Susan Tamulevich, executive director of the Custom House Maritime Museum in New London, and asked if she could send a recording of the old foghorn, said to be the original foghorn from Ledge Light, that is on view at the museum. He wanted the sound of a foghorn from the early 1900s, when the play is set.

Tamulevich sent off a recording.

She got a message back, saying, “We’re still in the process of creating and rehearsing the show, but will update you once we have landed on a sound we think will work. I need to find a balance between authenticity and people’s preconceptions of a foghorn.”

“It’s amazing, wonderful to have someone call from London,” Tamulevich said. “It was just fun. … It’s always nice when someone tries something new and has a different take on things.”

She added that it was a good prompt to do more research about the subject of foghorns here.

This version of “Long Day’s Journey” opens on March 19.