Its called the Death Waltz, and was written as a joke but people have attempted it on piano.
Saxes move downstage.
SWEET JESUS CLICK THAT
I hate this post! That link is to a completely different piece (some Japanese video game music I think). The real Death Waltz score makes little musical sense and was made as a joke. It’s supposed to be unplayable and only to be observed as a written score. Stop reblogging this post with that link on it! It’s spreading misinformation!