Georgia on My Mind, Rockin' Chair, Skylark, Lazybones, and of course the incomparable Star Dust--who else could have composed these classic American songs but Hoagy Carmichael? He remains, for millions, the voice of heartland America, eternal counterpoint to the urban sensibility of Cole Porter and George Gershwin. Now, trumpeter and historian Richard M. Sudhalter has penned the first book-length biography of the man Alec Wilder hailed as "the most...