For me, it was The Hole in the Sky[1] . It was added as a background theme for one of the episode of Korean web comic. Reading through one of the most saddest part throughout the series with this music, I couldn't resist but cry. It inspired me to pick up the piano that I've long forgotten since the obligatory asian kid's piano lesson when I was young.

What's your story? Was there a song that motivated you to play?