Full English translation is "13 Cappricio Studies (Very Difficult) for Trombone." And as the cover states, these 13 studies are highly technical in nature and will require some woodshedding to put together. Each etude has a general focus on one or two technical issues, with many others included for fun. Issues include clef changes, high register, tuplets, chromatic runs and passages, rhythms and rhythmic patterns. 15 pages. Saddle up! -cdp