Pitch fork
From Twilight Heroes Wiki
pitch fork
Plural: Unknown
A pitch fork (or "tuning fork") is a two-pronged fork made from a resonating metal, usually steel. Unlike a pitch pipe, it has a set tone that it makes when firmly struck against a hard surface. Since the waves generated by each tine cancel each other out, the sound is usually rather faint, unless it's pressed against something to amplify the sound.
See, this is why you read these things: Edutainment!
Accessory
Level Required: 5
Autosell value: 200
+5 sonic damage
How Obtained