Sentence:  [H]e was in the drawing-room before any of us; and I heard him at the piano while I was yet looking after my housekeeping, singing refrains of <WSD>barcaroles</WSD> and drinking songs Italian and German by the score. 
Meaning of the word marked with <WSD> tags:  A piece of music composed in imitation of such a song. (from late 18th c.)