The names Do - Re - Mi - Fa - Sol - La - Si of music notes are said to have been derived from the Gregorian Chant "Ut queant laxis", where each line begins on a higher note. In the original naming, which is generally attributed to Guido d'Arezzo from the 11th century, "Ut" was used instead of "Do" and Si was not included.
P.S. If you were wondering, the first part of text of the chant is: "Ut queant laxis / resonare fibris, / Mira gestorum / famuli tuorum, / Solve polluti / labii reatum, / Sancte Ioannes." |