Seihou/Awesome Music

As Touhous sister series, Seihou features some nice music, some of which is composed by ZUN during Touhous hiatus:
 * There's Erich's theme from Shuusou Gyoku, Magical Girl's Crusade, which is just plain awesome.
 * dBu's remix adds a delicious touch of pipe organs.
 * All three of (Boss) Vivit's themes, which includes:
 * Dream Machine ~ Innocent Power
 * Illusory Science ~ Doll's Phantom (which was remixed by ZUN as Phantasm Machine ~ Phantom Factory.)
 * Girl's Divinity ~ Pandora's Box
 * And of course Velvet Maiden Battle ~ Velvet Battle, VIVIT's theme in Kioh Gyoku, is nothing to scoff at either.
 * The ending theme, Herselves, is quite possibly the most beautiful ending theme ZUN ever composed.
 * We shouldn't forget Muse's theme from Kioh Gyoku, Enigmatic Doll ~ God Knows.
 * The first game's extra stage features a guest appearance by the two main characters. Marisa, as the first boss, is fought with Witches' Ball ~ Magus running in the background. It was remixed for IaMP, and got made all the more awesome by dBu.
 * Reimu, as the second boss, goes all out to the tune of Dichromatic Butterfly ~ Ancients which got reworked by ZUN for Dolls in Pseudo Paradise as Dichromatic Butterfly ~ Red & White and got featured as a jazz mix in Hisoutensoku.
 * On top of that IOSYS discovered that it made an awesome festival dance tune.
 * Yuuka Kazami also made an appearance in one of the games, resulting in her getting a new theme, Lovely Mound of Cherry Blossoms ~ Flower of Japan. The remastered version is just as beautiful.
 * He ended up remixing this in his album Dolls in Pseudo Paradise