sight makes sound, the wonder of guidonian hands

Guidonian hands

I first encountered Guidonian hands as an extension of my interest in graphic scores from the 20th century avant-garde. Beyond their shared use of drawing, and inherent beauty, the two have few conceptual links. Guidonian hands were a medieval mnemonic device (a system of learning aiding retention) designed to assist singers sight-sing (the sung realization of prima vista, or sight-reading). Their development is generally credited to an 11th centruy Italian music theorist named Guido of Arezzo, though the graphic use of the hand as a musical guide long predates the development of his technique. Within a Guidonian hand, each section of the hand indicated a specific note within the hexachord system (six-notes), over three octaves. In the absence of a score, once the graphic hand was memorized by a singer, a conductor would need only point to a series of notes on their hand. They are a fascinating fragment from the development of Western theory, as well as being objects of sublime beauty. I hope you enjoy.

 

Luce Antonii Junte 'Cantorinus ad Eorum Instructionem', 1540

 

Regole del canto fermo, e di sonare sopra la parte l'organo:  (14-?-16-?)

Guidonian hand3

 

guido-3

 

Guidonian hand4

 

Guidonian hands11

 

Page from the essay "Principium et ars totius musicae" by Francesco Ferrarese, Italian School (16th century)

 

Guidonian hand2

 

OLYMPUS DIGITAL CAMERA

 

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