Last night I randomly was able to download the various background instrumental music numbers that have been playing at various sub special sites of AKIHIDE's
Don't think I seen this before but the instrumental no. playing on loop in the special
AKIHIDE MUSIC THEATER Omoide Planetarium sub website is now tagged as Planetarium
http://akihide.com/special/omoide_planetarium/
Wouldn't surprise me if Planetarium will be included in Kikai Shikake no Yuenchi -Electric Wonderland-