There are 24 books in the Tanakh. Of these, 21 (all but Psalms, Proverbs, and Job) share a grammatical system of cantillation marks, or te’amim. Of these 21, Ashkenazim have melodic traditions for reading eighteen of them. The Torah has its system, the prophets have the Haftarah system, the three festival scrolls have their shared system, and Esther and Lamentations have their own unique systems. But what of the three remaining books? . . .