Beethoven's Hair is a psychological vignette of a game designed by Alex Mayhew. The piece is, according to the author, "part of a cross media project based on the true story of a lock of hair that was cut from Beethoven's head and the story of how it passed down through history."
The game starts out mildly interactive, which might make you think "oh, another one of those 'New Media', self-smug clap-traps." But once you unlock the keyhole you'll discover a thoughtful and intriguing take on the escape-the-room genre that infuses the usual search dynamic with free-form exploration and historical fiction.
At the start, you unlock Beethoven's tomb, your "spirit", or as they say in America, "mouse cursor", is projected in the form of a Butterfly, and must hover over a 'scape of sheet music in order to resolve issues in the composer's restless soul. The interaction is extremely simple; just move the cursor around to control your avatar and press up and down to fly higher or lower. Follow the notes and clues and figure out the rest.
The journey takes you through Beethoven's life, his music to a lesser degree, and down through the history of Germany in his passing. The end result is an interactive trip, the kind of experience you can only find on the Web. Its not highly re-playable, and its not highly fun (though kinda fun). What it is, however, is compelling, it goes beyond fun. Take the trip.