Detailed Instructions: Generate a correct and concise answer for the question based on the words in the context.
Problem:Context : Antonio Machin (Antonio Abad Lugo Machin; 11 February 1903, in Sagua la Grande, Cuba -- 4 August 1977, in Madrid) was a Cuban singer and musician.
Question : The year Antonio Machin died was what?
Solution:
4 August 1977