The Northeast Harbor Library’s French double-manual harpsichord is one of the finest examples of its kind, according to Northeast Harbor resident Edith Dunham, who is one of the area’s most knowledgeable people on the subject.

“If you wanted to go out and buy one of the best harpsichords around, this is definitely one of the best. The library is very lucky,” said Dunham.

Dunham has a master’s degree in early …