Whoever wants to bring the Nyckelharpa\'s rich sound to life should master the art of bowing. This includes, among other things, an appropriate use of up- und downbows. Making music on the basis of the bowing rules includes both body and gravity and also takes into account the constructive characteristics of the bow.\nIn the first part of this book some basic principles of a meaningful and musical distribution of up- und downbows are explained and a multitude of bowing patterns are introduced. A famous violin teacher from the past also has his say: Leopold Mozart. The rules from his \"Gründliche Violinschule\" are over 260 years old - but still a valuable inspiration today. The theoretical part is supplemented by an extensive collection of pieces in which the application of the bowing rules is\nshown in practice - with a multitude of pieces from different epochs and different areas of international folk music.