Bert Grund
Bert Grund( 1920–1992) was a German composer of film scores.
Thomas Morse
Thomas Morse( born June 30, 1968) is an American composer of film and concert music.
Alonso Mudarra
Alonso Mudarra( c. 1510 – April 1, 1580) was a Spanish composer of the Renaissance, and also played the vihuela, a guitar- shaped string instrument.
He was an innovative composer of instrumental music as well as songs, and was the composer of the earliest surviving music for the guitar.
Herbert Stothart
Herbert P. Stothart (September 11, 1885February 1, 1949) was an American songwriter, arranger, conductor, and composer.
He was also nominated for twelve Academy Awards, winning Best Original Score for "The Wizard of Oz".
Stothart was widely acknowledged as a member of the top tier of Hollywood composers during the 1930s and 1940s.
Amedeo Escobar
Amedeo Escobar( 1888–1973) was an Italian composer of film scores.
Abe Meyer
Abe Meyer( 1901 – 1969) was an American composer of film scores.
Emerson Treacy
Emerson Treacy (September 17, 1900 – January 10, 1967) was a film, Broadway, and radio actor.
Walter Ulfig
Walter Ulfig was a German composer of film scores.
Henri Verdun
Henri Verdun( 1895–1977) was a French composer of film scores.
Broadway Serenade
Broadway Serenade (also known as Serenade) is a 1939 musical drama film distributed by MGM, produced and directed by Robert Z. Leonard.
The screenplay was written by Charles Lederer, based on a story by Lew Lipton, John Taintor Foote and Hanns Kräly.
The music score is by Herbert Stothart and Edward Ward.

Question: Which country the composer of film Broadway Serenade is from?
Answer: American