The version you describe, featuring a combination of piano and flute, could be one of the numerous covers or arrangements of the song that have been recorded over the years. Some notable renditions that prominently feature the flute include:
- Chet Baker and Art Pepper: This version is from the 1956 album "Chet Baker & Art Pepper." It features Chet Baker on the trumpet and Art Pepper on the alto saxophone, with a delicate flute part accompanying them.
- Stan Getz and Joao Gilberto: This rendition can be found on the 1964 album "Getz/Gilberto." It showcases Stan Getz on the saxophone, Joao Gilberto on vocals and guitar, and a beautiful flute solo by Antônio Carlos Jobim.
- Yo-Yo Ma and Bobby McFerrin: From the 1994 album "Hush," this version features cellist Yo-Yo Ma and vocalist Bobby McFerrin. It begins with a solo piano introduction and gradually incorporates the flute, adding a gentle touch to the arrangement.
- Oscar Peterson: Jazz pianist Oscar Peterson recorded several versions of "As Time Goes By," including a rendition on his 1973 album "The Trio," where he's accompanied by double bassist Niels-Henning Ørsted Pedersen and drummer Bobby Durham.
These are just a few examples, and there are likely other versions of the song that feature the combination of piano and flute. If you're interested in a specific recording, you might want to further research and explore the various interpretations of "As Time Goes By."