a sequence of musical notes that form a pleasing or memorable tune, often conveying emotion or mood
mirth
noun / murth / mithless / mirthful an emotion that follows humor and accompanied by laughter and amusement We, in the ages lyingIn the buried past of the earth,Built Nineveh with our sighing,And Babel itself with our mirth;And o’erthrew them with prophesyingTo the old of the new world’s worth;For each age is a dream that is dying,Or one that is coming to birth. Arthur O’Shaughnessy (The Music-Makers)