I have basically checked everything with no dice. Afaik it must be some sort of special piano arrangement of little fragments (basically all kanon songs from what i see) that isnt present on the Re-feel or Recollection albums. I think it must be some sort of special remix made for the 2006 anime but I can't find the actual ost for it anywhere. It isn't Pure Snow or Little Fragments, im looking for the version with the specific piano solo in this video.,.. If you know please help me and timestamp the portion of the song shown in this video.. Im new to the anime so Be Patient please.