This school is a very beautiful instrumental pieces collection. There are, in addition to the accompanying CD's, a piano hinge to buy, the really easier with piano accompaniment playing together - also by two students - allows. The pieces are set beautifully and there are many that are not included in the German schools. In this Third Edition, there is significantly more than in the previous edition of duets and also the handling of CD's (including plays along racks) has been greatly facilitated / improved. Great value for money and a really successful addition to the usual teaching works on the German market.