I play the keys from highest to lowest, including the one that you can't get to without making Masada move his ass. For Uboachan
edit: The reason behind this video involves some of that theorizing that we Yume Nikki fans just love to do. Going along with the popular theory that Masada was an adult Madotsuki knew at some point in her life (possibly her piano teacher) who was really into drugs; his spaceship represents him being "high" and the crash-landing on Mars represents... well, a crash, most likely his death from overdose. My idea was that maybe the keys that he stands in front of represent something he hid from Madotsuki, since when you move him out of the way and play those keys he's standing on front of, they sound funny. Someone on Uboachan took a listen and said the note sounds like it has two pitches in it rather than just one, so the difference is more than just superficial, apparently.