For his first book, Ewald Koch has put together 26 favorite pieces suitable for home practice as well as public performance. There are original works and competently revised classics. The book harmonizes completely with the first volume of the Koch method (DV 30071), although the pieces can also be played and performed independently of the method. The degree of difficulty of the pieces is delimited by the name of the collection: "Von leicht bis virtuos" ("From Easy to Virtuoso").