1. Guido d’Arezzo (990-1050) created the System of Solmization (sometimes called, after him, Aretinian syllables or the Guido System of Syllables)

2. Also important was his system of solmization (sometimes called, after him, Aretinian syllables), whereby the syllables ut, re, mi, fa, sol, la are used as names for the six tones, C to A, known as the

3. Also important was his system of solmization (sometimes called, after him, Aretinian syllables), whereby the syllables ut, re, mi, fa, sol, la are used as names for the six tones, C to A, known as the hexachord.

4. Pl.) the Aretinian syllables: Voces belgicae (Latin) in solmization, the syllables bo, ce, di, ga, lo, ma, ni also called 'bobesation', 'Belgic syllables' or solmisatio belgica: Voce sola (Italian f.) the voice alone: Voce spianata (Italian f.) an even, smooth, sustained voice: Voce spiccata (Italian f.) …