# Musica 19

Claudius Ptolemaeus, Musica, Paragraph 19. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/claudius-ptolemaeus/musica/19

Ἔστι δὲ ἡ εὕρεσις τῶν τόνων καὶ τῶν ἡμιτονίων καὶ τῶν διέσεων κατὰ τὸν Ἐρατοσθένην η τόνος θ καὶ ταῦτα δὶς ιϚ ἡμιτ. ιζ ἡμιτ. ιη τόνος καὶ μεταξὺ εὑρίσκεται ἀριθμὸς ὁ ιζ. καὶ ταῦτα πάλιν δὶς δς. δς. δς. δς. λβ λγ. λδ λε λϚ ἡμιτ. ἡμιτ. τόνος εὑρίσκονται μεταξὺ ὡρισμένα λγ λε. — Καὶ πάλιν γίνεται δίτονον ὁ η καὶ ὁ θ πολλαπλασιαζόμενοι· ξδ οβ πα ὁ γὰρ οβ εὑρίσκεται ἀνάλογον μεταξὺ καὶ ποεῖ αὐτὸ δίτονον.

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Claudius Ptolemaeus, Musica, ed. Karl von Jan. Text: The Greek Library, from the Perseus Digital Library and other open sources, CC BY-SA 4.0. Changes: apostrophes normalised and the text divided into reading sections by Interlinea.
License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Source: https://thegreeklibrary.pages.lisn.upsaclay.fr/works/tlg0363.tlg011.local001/.