Thanks to gullivior for the You Tube.
Art Tatum recorded September Song in 1953. I have it on Disc One cut 10 on the complete Art Tatum Solo Masterpieces on Pablo. September Song was written by Kurt Weill and Maxwell Anderson for the actor Walter Huston to sing in the musical Knickerbocker Holiday in 1938. It becomes September Sonata in Art Tatum’s capable hands.
This was among my mother’s favorite songs, but she liked Nat King Cole’s vocal version the best.