The descending diminished 7ths in the Brass in the Intro: The ascending minor third motif of the theme: The extended (“b9”)
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78 RPM - Duke Ellington And His Famous Orchestra - Ko-Ko / Conga Brava - His Master's Voice - Switzerland - JK 2170
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KO-KO : Duke Ellington and his Famous Orchestra : Free Download, Borrow, and Streaming : Internet Archive
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Ko-Ko: 2nd Trombone By Duke Ellington (1899-1974) - Digital Sheet Music For Part - Download & Print AX.00-PC-0015251_TN2 | Sheet Music Plus
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