Shape Note - Four-shape Vs. Seven-shape Systems

Four-shape Vs. Seven-shape Systems

The system illustrated above is a four-shape system; six of the notes of the scale are grouped in pairs assigned to one syllable/shape combination. The ascending scale using the fa,so,la,fa,so,la,mi,fa syllables represent a variation of the hexachord system introduced by the 11th century monk Guido of Arezzo, who originally introduced a six-note scale using the syllables ut, re, mi, fa, sol, la.

The four syllable variation of Guido's original system was prominent in 17th century England, and entered the US in the 18th century. Shortly afterward, shapes were invented to represent the syllables. (see below). The other important systems are seven-shape systems, which give a different shape and syllable to every note of the scale. Such systems use as their syllables the note names "do, re, mi, fa, so, la, ti, do" familiar to most people. A few books (e.g. "The Good Old Songs" by C. H. Cayce) present the older seven-note syllabization of "do, re, mi, fa, so, la, si, do". In the seven-shape system invented by Jesse B. Aikin, the notes of a C major scale would be notated and sung as follows:

For other seven-shape systems, see http://fasola.org/introduction/note_shapes.html.