Greta, et al:
This song (I can't tell you the genre, but the recording was done in Mexico), based on the information in the page, was obviously written as the melody for THE ETERNAL FLAME. Although that film was released in the United States in 1922, it seems that in Mexico and other regions was not shown until two years later.
Since I can't do it right now, due to the location where I'm writing, I'll later attempt to look for a sheet music cover.
