Unfamiliar with Shirley Horn? Like Someone in Love, from her album Embers and Ashes (1960), is as good an entry point as any. Horn sings and accompanies herself on piano, backed by Joe Benjamin (b) and Herbie Lovelle (d). The song was written by Jimmy Van Heusen, with lyrics by Johnny Burke, for the film Belle of the Yukon (1944). In the movie, the song was sung by Dinah Shore.
Here's Shirley Horn singing and playing Like Someone in Love...
And here's Dinah Shore in a colorized Belle of the Yukon introducing the song in 1944...