A collection of very short tunes written by Sheila M. Nelson. Initially notated with numbers (fingering) rather than notes and then later written in staves.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.Sheila M. Nelson (b. 1936) is a British composer string teacher and pedagogue. She studied at the Royal College of Music and also in Denmark and the USA. She has become known as one of the foremost music educators of her generation and also for her highly popular pedagogicalworks.