霊火神焔 ～Eastern Alternation～，包含柊秀雪演奏的两首非常美丽的钢琴曲。Soul Flame, God Blaze ~Eastern Alternation~ (霊火神焔 ～Eastern Alternation～ Reika Shin'en ~Eastern Alternation~) is a doujin album by Ash Blind released on 2010-03-14 (Reitaisai 7). It is a vocal and instrumental album featuring arrangements from Mountain of Faith, Subterranean Animism and Undefined Fantastic Object.Tracks 10 and 11 were previously released in Piano no tame no Touhou Shoukyokushuu Op.1-1.