The orange key is not a note, it suggests when the sustain pedal should be used. This is done to keep the notes looking clean.

I started transcribing this song shortly after it came out, but stopped a few days later. Only recently have I revived the project and finished it.

Audio was rendered outside of Synthesia using the following:
Piano - Image-Line's FLKeys
Harpischord - Campbell's Harpischord
Tubular Bells - The-Filmmusic-Group's Free HQ Orchestra Soundfonts
Vibraphone - Windows Default (Roland GM/GS Sound Set)
Reverb - Image-Line's Fruity Reeverb

Original Song, Lullaby for a Princess:
https://www.youtube.com/watch?v=H4tyvJJzSDk

Downloads:
MIDI, sustain pedal - https://drive.google.com/file/d/0B3AYJns48g56S2VRTmlkNF9nRFU/edit?usp=sharing
MIDI, sustain applied - https://drive.google.com/file/d/0B3AYJns48g56U3NPQVpvZU8tODQ/edit?usp=sharing
MIDI, volume adjusted - https://drive.google.com/file/d/0B3AYJns48g56VUV1bDRTbFVrclU/view?usp=sharing
Synthesia - http://www.synthesiagame.com/

If you would like me to take a shot at transcribing something, feel free to PM me a suggestion