This lovely Bizzi 2-manual (2x 8′, 1x 4′) harpsichord, which I have serviced before, had some sticking keys.

The reason was a surprise: a spider’s nest!

Keyboard out – notice the white patch!

Upon removal of the keyboard and keys in the treble area, the wee web was revealed. (The spider had already vacated – so no spiders were harmed in the making of this operation!).