This is the first part of l'Enfant et les Sortileges, an opera sometimes staged as a ballet with singers offstage. It's absolutely delightful. The composer is Maurice Ravel, an impressionist of great precision and whimsical charm, one of the few lengendary artists to achieve aesthetic greatness in all realms of music.
Watch it! I'm currently working on the fire aria (its right at the beginning of part two, which I haven't posted but you'll find right after this on youtube).