Book 3 introduces the concepts of key, key signature, scales, triads, tones and semitones in a novel and exciting way each key is a group of characters or objects with note-names i.e. a band, a birthday party, a clothes-line with garments. Certain notes belong, while all other notes accidentals are outsiders. Transposition is a natural outcome of this concept, with a tune moving from one group to another. The child masters eight new notes up to High G and down to Low F, which facilitates the playing of more adventurous repertoire. The semiquaver, semiquaver rest, dotted crotchet and dotted quaver are introduced, and tempo markings are