Talk:Event:DeemoLightDungeon/@comment-26099385-20151218095645/@comment-2223363-20151218140216

No idea what the Vortex Selection song might be, but it's the menu song played in the game when you're at the last piano.

Haven't played the dark version yet, but the BGM that plays in this dungeon is as it follows:

Friction by MILI - Lv.1 and 2

Magnolia by M2U - Lv.1 and 2 Boss Battle

Anima by Xi - Lv.3

Myosotis by M2U & Nicode - Lv.3 Boss Battle

If you haven't played the origin game, Deemo, you really should consider it. It has a wonderful OST~