Including this to show how a known "Ranzo" song was rendered, by one singer, as "rango."

From a recording in the Library of Congress:

The subject of the recording is Jim Archer, recorded May 29, 1939. His age was estimated 78-80, so, maybe he was born 1859-61. Archer was a night watchman on the Mississippi, starting 1881 or 1882 and ending maybe around 1904. Saw roustabouts carry loads from boats. The mate would load their backs, send them down the stage plank. Captain of the watch, a Black man, stood on the bank to direct the roustabouts in depositing their load, and send them back to the ship.

There was a line of “the Coast Boats” from NOLA up through the Delta. The boats, like Natchez and White, would approach the wharf (they didn’t sing the song on ALL of them) about 400-500 feet away. To discharge cargo they’d come out in a circle under the boiler deck. The captain would be on the boiler deck over head. “It was the rule of the boat to sing.” The mate was down in charge of the labor. When they got a certain distance, they’d sing the song. The roustabouts would select the best man that they had in their gang.

Archer sang, slowly, to the tune we'd recognize by the sailor chanty title as "Ranzo, Ranzo, Ray"

Captain captain gimme your daughter
        Rango, rango oh-o-o
Gimme your daughter I’ll marry her on the water
        Rango rango oh