Fit as the proverbial fiddle

via Daily Prompt: Buff

By Michael Praetorius – Syntagma Musicum, Public Domain,

Why is it proverbial that fit fiddle? Has it worked half as hard as you have burnishing those abs of steel?

It is more likely that the fiddle has an owner who is shining and polishing its lacquered surfaces to keep it a wheaten color and to make sure its tone remains golden and pure. Most things don’t come naturally.