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 due to the song "Do-Re-Mi"