Luigi Cherubini and Louise Farrenc Ed: Heyes . Both duets are reprinted from Otto Langey's Practical Tutor for the Double Bass and are presumably arranged by Langey. Cherubini's Duet is a short canonic work which is lively and accessible, and would fit easily into any concert, and Duetto by French composer-pianist, Louise Farrenc, is a charming salon piece where the melodic material is shared equally between the players. There are few technical challenges for intermediate duo, and this has been one of Recital Music's best sellers for over 20 years.. Performance Level: 6;7.. Grade: 6 - 7