Charles Addams' Harpsichord

Origins
Charles Samuel "Chas" Addams was an American cartoonist known for his darkly humorous and macabre characters. Some of the recurring characters, who became known as The Addams Family, have been the basis for spin-offs in several other forms of media. They were given a TV show in the mid 60s, which gave birth the the now iconic 'Addams Family' theme.

Effects
This harpsichord was used in the original recording of the 'Addams Family' theme and will still play if it has an audience. When the tune gets to the point where the cast would click their fingers, anyone nearby will be compelled to fill the space.

It has no malicious effects and only plays one tune, but is still kept well out of the way due for convenience.