Two songs I wish to be transcribed, from the great visual novel "Cross Channel".

Song name: Diarize
Game name: Cross + Channel
Original song:
http://www.youtube.com/watch?v=yz6ZP3d7GzM&feature=related
A cover:
http://www.youtube.com/watch?v=SBDhmmQ6jq4
Original instrument(s):???
Instrument to transcribe to: Piano
Comments: I'd like it to be as close to the piano cover I linked to as possible.

Song Name: Crystal Clear
Original Song:
http://www.youtube.com/watch?v=wN8H_COnk1o&feature=related
Original Instrument(s): Piano
Instrument to transcribe to: Piano

Thanks to anyone who wants to help! I have grown attached to these two songs, that it'd be great to play them on the piano.