intone

(v) utter monotonously and repetitively and rhythmically
- The students chanted the same slogan over and over again
tone, chant,
(v) recite with musical intonation; recite as a chant or a psalm
- The rabbi chanted a prayer
cantillate, chant, intonate,
(v) speak carefully, as with rising and falling pitch or in a particular tone
- please intonate with sadness
intonate,

tone chant cantillate intonate

intoned