I really like the idea of having demos in a console. The menu system works well too and has a great retro feel to it. I started with Melody Heights, which looks and sounds amazing. I wondered around a bit and went up to what seemed to be the summit. I like the way all the fairy things emanate sound and fly away from you. It might be nice to be able to speed up or even moon jump to dramatically shift the soundscape.
Then I had a go at Harmony Falls. I didn't realise I could shoot the sounds at first so I just died in a discordant harmony, which sounded pretty cool. Shooting was fun for a while but I didn't get the feeling I was going anywhere. Perhaps in a future version there could be levels with different sounds and maybe a parallax background for sighted players. Looking forward to Secret Bread and Super Kaleidophone !