tonic solfa

Tonic sol-fa is a system of musical notation that uses syllables to represent musical notes, emphasizing their relationship to the key note. This method, developed around 1850 in England by John Curwen, is a form of solmization, a practice with roots in ancient music systems. The predominant European system, introduced by Guido of Arezzo in the 11th century, used syllables like ut, re, mi, fa, sol, la, derived from a Latin hymn. This facilitated sight-reading by associating intervals with syllable pairs. Later, the system adapted to seven-note scales, with "ut" evolving to "do" and "si" (later "ti") added. Tonic sol-fa utilizes a special notation with the initial letters of these syllables.12