In the United States, Yann Tiersen is probably best known (when he's known at all) for providing the soundtrack to the acclaimed whimsical arthouse film Amélie. In a more forgiving world, however, he'd be known over here for the same things he's known for in his native France: being a genre-bounding collaborator, composer and songwriter of the highest caliber. The songs on his most recent album, Skyline, don't stay in one place for long, but the places they go are the sorts of destinations that few pop musicians could even hope to imagine all at once. With Piano Chat. —David Raposa