HARWICH, Mass. -- No one has come forward to explain a musical mystery discovered deep in the woods on Cape Cod.

A woman walking in the Bells Neck Woods on Saturday afternoon came upon a piano in perfect working condition, Harwich police said.

The Baldwin piano, which had a matching bench, was set up as if someone was about to sit down and play, reported WCVB-TV in Boston. Despite efforts by police to locate its owner, or at least explain how it came to be in a conservation area, police Monday said no one has contacted them.

No more musical instruments have been found, police told the Cape Cod Times. "No flutes, no clarinets," a spokesman said. "We haven't got a band yet."

The piano is so heavy that it took more than a half-dozen men to load it onto a truck.

Because the piano had not been damaged, it could not have been pushed out of a vehicle, police said. Someone took great care to place it in the conservation area in superb condition.

Police said they have no idea how long it had been in the woods.