" That's a Plenty " is a 1914 ragtime piano composition by Lew Pollack . Lyrics by Ray Gilbert (born 1912) were added decades later. Several popular vocal versions have been recorded, but it is more often performed as an instrumental. The composition started as a rag but is nowadays played as a part of the Dixieland jazz repertoire. The song has been recorded by numerous artists, including saxophonist and clarinetist Sidney Bechet and cornetist and trumpeter Muggsy Spanier , and is considered a jazz standard . – more at Wikipedia