Notes.
Reading edition
Atlaua, mentioned by Olmos, who translates the word “Master of waters,” is a divinity of whom little is known. The derivation from atlatl, arrow, would seem more appropriate to the words of this hymn. Chalmecatl, used as a synonym in v. 1, appears to be from chalania, to beat, to strike, as a drum.
On Quilaztli see notes to Hymn XIII.