Ancient Roman musical instruments.. Ancient musical instruments and masks. A Greek barbiton or harp (1), a mask of Hercules furens of Euripides (2), a mask of Thais from Terence's play of the Eunochs (3), lyre player from volume 4, plate 42 of the Herculaneum paintings (4) and lyres from Sir William Hamilton's collection (5,6). Copperplate engraving from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1820.