小さなてのひら from CLANNAD Game Original Soundtrack by Key Sound Label (3 disks).
http://www.amazon.com/CLANNAD-Original-SoundTrack/dp/B00078WHCY/
iTunes:
https://itunes.apple.com/jp/album/clannad-original-soundtrack/id823583025
https://itunes.apple.com/us/album/clannad-original-soundtrack/id823583025
WACOCA: People, Life, Style.