Singer Gli Armoniani is an unknow quantity. I can find absolutely nothing on this person on the Internet or listed in any books I have. He may have been a studio singer who they called on to sing “The Yellow Rose of Texas” for his only Spaghetti western associated film, “Seven Dollars to Kill”.
ARMONIANI, Gli [Italian] – singer.
Seven Dollars to Kill – 1966 [sings: “The Yellow Rose Of Texas”]