Tonic Sol Fa
A system of musical notation in which the syllables doh, ray, me, fah, soh, lah, te, with certain modifications, are used in place of notes, staff, clefs, and all the ordinary characters of musical notation.
The Tonic Sol Fa is based on the assumption, amply proved by experience, that the mental association between a succession of sounds and a succession of syllables helps materially to fix the former in the memory (see Hexachord). The principle of the Tonic Sol Fa system is as old as the time of Guido; the modern development of it originated with Miss Sarah Ann Glover, of Norwich, England, in 1812, and was perfected by the Rev. John Curwen about thirty years later.