Cosme McMoon (Composer)
Born: 22nd February 1901, Mapimi, Mexico
Died: 22nd August 1980, San Antonio, Texas. United States
Nationality: Irish-Mexican-American
Cosmé McMunn who used the name Cosmé McMoon, was an Irish-Mexican-American pianist and composer, best known as the accompanist to notably tone-deaf soprano Florence Foster Jenkins.
Read more at https://en.wikipedia.org/wiki/Cosmé_McMoon