The longed-for fourth part of the Colourstrings Viola Book D (2/2025) series is here! Book D continues the use of the five-line stave introduced in the Book C and uses folk songs from 12 different countries. New and mixed finger pattern (e.g., the flattened second finger) and major & minor pentachords as well as major and natural minor melodies are introduced by learning one new thing at a time. An extensive appendix offers 48 pages of exercises in bow division, rests, bouncing bow, arpeggios and chords. Cut out figures for major and minor to be used as pedagogical tools are specially designed for this book. The figures are present on many pages, helping to build the sense of diatonic scales.