I remember recently hearing the Zelda' fairy fountain theme recent and a wave of nostalgia just washed over me. It reminded how much I really loved this franchise.
https://www.youtube.com/watch?v=vAXV-DOkILI
Dearly Beloved always gets to me too:
https://www.youtube.com/watch?v=TG1pRNQAByI
What are your most nostalgic soundtracks?