‖ duettino|duetˈtino, djuːɛˈtiːnəʊ| [It.: dim. of duetto duet.] ‘A duet of short extent and concise form’ (Grove Dict. Music 1879). 1839Longfellow Hyperion iv. iv, Ariettas and duettinos succeed each other.1842Musical World XVII. 83/3 (title) Three Duettinos for the Cornet à Pistons.