"In a Mellow Tone", also known as "In a Mellotone", is a 1940 #jazzStandard composed by #DukeEllington, with lyrics written later by #MiltGabler. The song's chord changes are based on the 1917 standard "#RoseRoom" by #ArtHickman and #HarryWilliams, which Ellington had recorded in 1932.