Duke ellington is known for what type of jazz music?

Swing

Explanation:

Duke Ellington considered being a famous composer of jazz music especially swing. Duke at a younger age, learned to play music and in his teen became a professional. He got motivated by jazz music, which became popular in his time. Duke developed jazz swing music which formed by a large dance band, who played music with smoother beats. Take the A train is one of the Duke's swing jazz music.