cantulus
cantŭlus, i, m. dim. [cantus],
- a little song, Firm. Math. 3, 12.
hirundines ‥ ~is vocibus garrulantes
cantŭlus, ī, m. , dim. de cantus : Firm. Math. 3, 12.
Cantus. Jul. Firmicus lib. 3. cap. 12 :
Ex invento Cantuli et organi, faciant magistros, etc.