According to Ellington, 'In a Sentimental Mood' was born in Durham, North Carolina. "We had played a big dance in a tobacco warehouse, and afterwards a friend of mine, an executive in the North Carolina Mutual Insurance Company, threw a party for Amy. I was playing piano when another one of our friends had some trouble with two chicks. To pacify them, I composed this there and then, with one chick standing on each side of the piano.