Also, Satsuki ga Tenkomori confirmed on his twitter that the version of Okotowari Shimasu on the CD is an all-new version, as you would expect. So probably all the rest of the "repeats" are new versions as well. http://twitter.com/TENKOMORI/status/90019974013394944
Re: [Utattemita] EXIT TUNES PRESENTS Lon BEST - Hisshi ni Utattemita Hen
http://www.nicovideo.jp/watch/sm14985661
Also, Satsuki ga Tenkomori confirmed on his twitter that the version of Okotowari Shimasu on the CD is an all-new version, as you would expect. So probably all the rest of the "repeats" are new versions as well.
http://twitter.com/TENKOMORI/status/90019974013394944