A little more information:
"In 1941, Lionel Belasco and a singer, Massie Patterson, submitted a group of songs about the West Indies, composed by Lionel Belasco, to Maurice Baron for publishing. Maurice Baron transcribed the music. One of those songs was "L'Année Passée." Baron hired one Olga Paul to translate the Patois lyrics into English." Cumana is the proper spelling of 'Koomahna'. Point Cumana is on the peninsula extending west of Port-of-Spain.

Amsterdam published a year later; this led to the suit which Baron eventually won. Louis Nizer, the trial lawyer, wrote a book about it.
Rum and Coca Cola
L'Année Passée (Yesterday) is the the true story of Mathilda Soye, convent-educated, who fell for a man on the 'street' and eventually became a prostitute. Belasco, a young man at the time in 1905, composed the calypso.
No luck yet finding the song.