In the spring of 1945, as World War II finally began to draw to a close, Duke Ellington began “Your Saturday Date With the Duke,” a series of weekly broadcasts sponsored by the U.S. Treasury Department to promote the sale of war bonds. The sets featured classics from the Ellington songbook, pop hits of the day, obscure Ellington/Strayhorn compositions rarely or never recorded by the band, and pitches from Ellington and MCs to buy war bonds, along with occasional news bulletin interruptions. Ellington’s 1945 band, removed only a couple of years from the celebrated Blanton-Webster era…