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Discorso particolare intorno all'unisono
(2016)
Vincenzo Galilei was among the first music theorists to advocate for a new system of tuning based on performance, instead of the mathematical principles of music set fourth by Pythagoras. Pythagorean music theory bases ...
The Abacus: Introduction
(2016)
The Abacus was an instrument useful for various mathematical computations. This learning leaflet provides step-by-step instructions for the basic operations of the abacus.