India, Oct. 6 -- Travel isn't just about where you go-it's about how you feel. The crackle of festive fireworks in Delhi. The crunch of fallen leaves in Vermont. The hush of mist rolling over a British moor. And behind it all, there's music-and the perfect playlist.

A song you play on a flight becomes forever tied to a city. A track you hear at a bar in Barcelona takes you back years later with just one note. Music doesn't just accompany travel; it imprints itself on the memory of it.

And autumn, especially, calls for a playlist of its own. It's a season of transition: leaves turn, and so do our moods. There are twilight walks when the air is sharper, long train rides under falling canopies, festive nights that stretch into fireworks, a...