Complex sentence: It is notable as the last release of Ella's four recorded collaborations with Duke Ellington, later in 1966 Ella and Duke went on to record their final album together; "Ella and Duke at the Cote D'Azur".
Split into simpler sentences: It is notable as the last release of Ella's four recorded collaborations with Duke Ellington. Later in 1966 Ella and Duke went on to record their final album together; "Ella and Duke at the Cote D'Azur".