also, just to actually answer the question, if it’s played as an instrument, it’s an instrument. Anvils have been instruments (See that thing in Andor. that’s an instrument.) Saws, too. Wine glasses. (both, by playing the rim, as well as breaking them as a sort of percussive instrument.). Even your desk when you’re bored out of your skull waiting for that one email to come in so you can do your job. (rapatap tap, smack rapatap tap, thunk.)