Solfège is a system for singing or sight-singing that uses syllables to represent pitches. Solfège works by associating the syllable with the sound of the musical pitch, the sign used to notate that pitch, the location on an instrument, and the movements required to perform that pitch. The goals include, but are not limited to accurately singing music at sight, teaching or learning music quickly, imagining the sound of written music, memorizing music, and more. It is an effective and useful musical tool.
There are two types of solfège systems: fixed do and moveable do. Fixed do solfège systems all assign the syllable do to the pitch class C. Moveable do systems assign the syllable do to the tonic of the given music.
The solfège syllables used vary slightly depending upon the country, and have undergone adaptions by various music educators and theorists. The most common fixed do solfege systems are 5 flats/5 sharps, Hullah, Siler, Sottorio.
See our post on our new solfège system.