The same question has been bothering me for months, and I finally stumbled across the track that this cue reminds me of. Not sure if this is the same song you were remembering, but I figured it might help someone: [Albinoni: Adagio for Strings and Organ in G Minor (specifically the part that starts around 6 minutes in)][1].

This song was in one of my study playlists from college, and I happened to hit it while Spotify was shuffling all of my Liked songs. It was like an epiphany. I had to pull to the side of the road so that I could write down the song that had just played.

  [1]: https://youtu.be/Assw5W25CLc?t=370