abridurif:Guido d’Arezzo (992-1040) / La “main guidonienne”In Medieval music, the Guidonian hand was
abridurif:Guido d’Arezzo (992-1040) / La “main guidonienne”In Medieval music, the Guidonian hand was a mnemonic device used to assist singers in learning to sight-sing. -- source link
#history#music