In accordance with the foregoing investigations on mathematical principles, let bronze vessels be made, proportionate to the size of the theatre, and let them be so fashioned that, when touched, they may produce with one another the notes of the fourth, the fifth, and so on up the double octave.

— Vitruvius De architectura (The Ten Books On Architecture) (-15)

More quotes by Vitruvius

De architectura (The Ten Books On Architecture) (-15)

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