Azure (song)"Azure" is a 1937 song composed by Duke Ellington with lyrics by Irving Mills. The composition is an example of Ellington's early use of bi- and polytonality, and some parts of it are almost atonal in nature.Notable recordingsElla Fitzgerald - Ella Fitzgerald Sings the Duke Ellington Songbook "Ella at Duke's Place" Earl Grant - Midnight Sun Cecil Taylor - Jazz Advance Tony Bennett - "Bennett Sings Ellington: Hot & Cool"