Guido's Hand

How staff lines and solmization syllables made pitch writable, teachable and portable.

Related

MedievalClefScale

An eleventh-century monk copying chant had no precise way to write pitch. Guido of Arezzo turned lines, spaces and a set of syllables into a teaching tool; later diagrams placed the whole system on the left hand.

Time and place

Around 1025–1030 in Arezzo, Italy. Guido wrote the Micrologus at Pomposa and then taught singers at the cathedral of Arezzo.

What happened

He took the opening syllables of the hymn Ut queant laxis for ut, re, mi, fa, sol, la, giving singers fixed syllables for semitone and whole-tone steps. Red lines marked F and yellow lines marked C, and the distance between lines showed pitch. The four-line staff became a reading tool. The Guidonian hand mapped twenty pitches onto the joints of the left hand, so a singer could find a hexachord's starting point by pointing. The diagram may not be Guido's own, but it made his method portable.

What changed

Pitch could be written down, sent away and sung from the page instead of being held in memory. Choirs learned new chant quickly, and composers could coordinate several voices. The staff later gained a fifth line and neumes became square notes, but the principle that lines and spaces carry pitch is still with us. Notation stopped being a memory aid and became the way music exists.

Listen for the turn

Begin with Hildegard's monophonic chant, a single line moving within an octave. Then hear Perotin's four-voice organum, where sustained notes support florid upper voices and the parts need a written page to coordinate. The versions are synthesized; listen to pitch relationships.

Related

This turn belongs to Medieval and explains the origins of Clef and Scale.

Sources

• The New Grove Dictionary of Music and Musicians, 2nd ed., entry "Guido of Arezzo" — dates and terms checked, not quoted
• Richard Taruskin, The Oxford History of Western Music (Oxford University Press) — narrative checked, not quoted

Used for fact-checking only; all prose is original.