A waltz is "dance music in triple meter, written in time signature 3/4-beat. Waltzes typically have one chord per measure, and the accompaniment style particularly associated with the waltz is to play ...

The smiles are the tip-off. All around the second-floor ballroom, couples are grinning as they swirl in three-quarter time. One, two, three – one, two, three. Young with old, fat with thin, pretty ...