This is a type of 15th-century Iberian stanzaic song called a villancico; the nearest English equivalent would be a madrigal. The language is not quite Spanish, but a kind of Mediterranean Lingua Franca. The title might almost translate as "tweet tweet tweet", since the song is about a lover going into his garden before dawn to gather flowers, hearing a nightingale sing, and asking the bird to tell his lover that he is already married. A simple and charming song, with alternating triple and duple metres, skillfully arranged and ornamented by Jock McKenzie.