Sentence:  A comma or colon was <WSD>intonated</WSD> by the fall of a minor third from the key-note on the ultimate or penultimate and ultimate syllables of the clause ... 
Meaning of the word marked with <WSD> tags:  To intone or vocalize (musical notes); to sound the tones of the musical scale; to practise the sol-fa.<ref>John S. Adams, "Adams' New Musical Dictionary", New York: S.T. Gordon, 1865, p.(nbsp)121: “Intonate. To sound the tones of the scale; to practise solmization; to read in a musical manner.”[https://catalog.hathitrust.org/Record/100695670]</ref>