Tenor Trombone,Trombone Solo - Level 1 - Digital Download SKU: A0.1413008 Composed by Kevin Riley. 21st Century,Instructional. Individual part. 3 pages. Kevin Riley #995013. Published by Kevin Riley (A0.1413008). A series of easy studies for trombone. Well maybe not easy peasy! There are a few little issues in some of the pieces. Tempos can be flexible. Slurs are optional, mainly against the grain slurs. Worth working on ever at an early stage.