String teaching materials from the world's favourite string teacher Sheila Nelson. Tetratunes allows young players to learn note reading in blocks of four step-wise notes on each string. This system develops physical skills slightly ahead of note-reading. ''These books are a real find for those of us who do group teaching .... a wonderful book for multilevel teaching'' Strings Magazine, 1995The edition is part of the Trinity syllabus 2007 (grade initial).