Sheila Marie of Medway said she was recruited by historical investigator Kevin Kennedy to help locate the piano reputed to have been tossed into Willis Pond in Sudbury during partying decades ago, the Boston Herald reported Wednesday.
Marie described herself as a "forensic medium" who uses her powers to find lost objects and assist in police investigations.
Kennedy said he has long been searching the pond, where the piano was rumored to have been submerged decades ago, so he brought in Marie despite his skepticism.
He said his skepticism was short-lived after divers acting on Marie's directions discovered the piano veneer.
"I was sold on what she is," Kennedy said. "I placed her at a point where (Babe Ruth's) cottage was and had her face the pond. I'm not sure how it works but she gave us compass points, the divers looked and she found the veneer where it wasn't supposed to be."
The veneer pieces are now in the possession of the Sudbury Historical Society, where officials said the piano is likely to be restored and donated to a museum.