For as many versions of this song that are available, I could not find one that recreated the experience I consistently had in-game, that of arriving at a save point and leaving the game paused just to sit in the respite this lovely tune provides without silences in between.
So I went ahead and made one. Enjoy.
I DO NOT OWN THE RIGHTS TO THIS MUSIC
Heal is composed by Michiru Oshima and/or Koichi Yamazaki and is owned by Sony Computer Entertainment.
You can grab a copy of the MP3 via Dropbox: https://www.dropbox.com/s/jvqgb2i7faj46ew/ICO_HEAL_LOOP.mp3?dl=0
And the artwork I used for the video lives over on Imgur: http://imgur.com/a/qZlrM
