Yann Tiersen’s legendary score for 'Amélie' is famous for its use of the accordion and piano, but it also features the Ondes Martenot to provide a touch of magic. The Ondes Martenot is an early electronic instrument that produces a singing, whistle-like tone. Tiersen used it to underscore the whimsical, 'fairytale' nature of Amélie's life in Paris. Its shimmering sound provided a bridge between the realistic accordion music and the character's vivid imagination. This choice showed how a vintage electronic instrument can be used to add a 'dreamy' layer to a modern movie legend, making the mundane world of Paris feel like a place of endless possibility and wonder.