This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

v. Present participle of chant.

n. Singing, especially as a chant is sung.

n. Singing, esp. as a chant is sung.

n. the act of singing in a monotonous tone

"I guess "chanting" is the closest word I can come up with."

singing    vocalizing   

cantillation   

chant   

decanting    enchanting    granting    implanting    lanting    panting    planting    ranting    recanting    replanting