Teacher's guide in Finnish). Composed by Arja Suorsa-Rannanmaki. Handbook. Fennica Gehrman #55011-414-2. Published by Fennica Gehrman (FG.55011-414-2).
ISBN 9790550114142.
Colour Keys is designed for young beginners. As a child-centered method it introduces new musical concepts in the simplest manner possible. The coloured staff is constructed gradually from a single-line staff into a five-line staff. The teacher's guide is now available in Finnish and in English.