Book excerpt: Kreutzerini: 42 finger exercises for perfect intonation in the first position! Colourstrings® Violin ABC is finally available in digital format! Violin Books A, B, C and D, Scales book 1, 2 and 3 and Kreutzerini are released as electronic publications. The Colourstrings® method uses a colour for each string and focuses on teaching children rhythm and technique on open strings while gradually introducing them to more complicated methods. Kreutzerini contains supplementary material for the Colourstrings® Violin ABC Book B: 42 finger exercises for perfect intonation in the first position. These mini-studies for violin were created in order to make learning and teaching "ear-led finger-stopping movements" even more effective and enjoyable.