With their beloved musical adaptation a perennial Madison Square Garden event from the show's 1994 debut through 2003, Tony Award winners Lynn Ahrens' and Alan Menken's A Christmas Carol will put the "hum" in "Humbug!" from November 11 through December 29, this delightful holiday fable the first production in the 50th-anniversary season at Rock Island's venerated Circa '21 Dinner Playhouse.