What's the word I'm thinking of? Today, it's....
CANOROUS [can-OR-uss]
(adjective)
Melodious; musical
"The dull life at Oxford was varied by the occasional visit of a mesmeric
lecturer; and one youth caused peals of canorous laughter by walking
round in a pretended mesmeric sleep and kissing the pretty daughters of the
dons."
--Thomas Wright, The Life of Sir Richard Burton (1906)