Angelo Piazzini & Giovanni Punto 
8 Virtuoso Tuba Duets by G.Punto [EPUB ebook] 

8 Virtuoso Tuba Duets arranged by Angelo Piazzini (included single parts). Giovanni Punto, born Jan Václav Stich, also known in German as Johann Wenzel Stich (Žehušice, 28 September 1746 — Prague, 16 February 1803), was a Czech horn player and composer. He was an international celebrity during the 18th and early 19th centuries, best known in London, Paris and Germany at the time. Today he is widely regarded as one of the most important horn players (especially bass horn) in history.