The volume for intermediate players in the Ad libitum series offers duos from the Renaissance to the Late Romantic Period, which can be performed in a varied ensemble of instruments. The publication also contains works by less well-known composers, including two pieces by Bertalotti which were originally written for solfege yet are valuable as concert pieces and can be well played, as well as a composition by Jacques-Christophe Naudot and one by Carl Friedrich Weidemann.
,,1. Morley, Thomas: Fantasia ('La Caccia', The First Booke of Canzonets to Two Voyces, 1595)
,2. Diruta, Girolamo: Three ricercars (Il Transilvano, Seconda Parte, 12 Ricercari, 1609, Nos. 2, 4, 6)
,3. Pachelbel, Johann: Fuga (Fuge in C, T 264)
,4. Bertalotti, Angelo Michele: Two solfeggios (Solfeggi a canto e alto, 1744, Nos. 19, 34)
,5.Telemann, Georg Philipp: Soave (36 Fantaisies pour le clavessin, TWV 33, No. 29/II)
,6. Naudot, Jacques-Christophe: Gigue (5 Duettos)
,7. Weidemann, C. Fr.: Air
,8. Beethoven, Ludwig van: Duo (Duo für zwei Flöten, WoO 26í9
,9. Mozart, Wolfgang Amadeus: Three duos (12 Duos für zwei Hörner, K 487 (496a), Nos. 8, 5, 12)
,10. Offenbach, Jacques: Andante (Duos pour deux violoncelles, Op. 51, No. 1/II)
,11. Reger, Max: Two canons (111 Canons durch alle Dur- und Molltonarten, Heft I, Nos. 7, 46)
