IGN ran a three-part special feature "Behind the Music" from August 27 to September 11, 2007. Each part introduces different playable characters from Eternal Sonata with gameplay videos:
Part 1: Frederic Francois Chopin, Polka, and Allegretto.
Part 2: Jazz, March, Beat, and Claves.
Part 3: Salsa, Falsetto, and Viola.
To save bandwidth, only the videos of Polka, March, and Salsa are included here. The complete IGN special feature in three parts contains all ten character profiles and videos.