Released at Comic Market 73 (C73)
M01
Vocal: Yui Horie, Yukari Tamura, Miki Ito, Toru Okawa
Drama Cast
前原圭一： Soichiro Hoshi
竜宮レナ： Mai Nakahara
園崎魅音/詩音： Satsuki Yukino
古手梨花： Yukari Tamura
北条沙都子： Mika Kanai
羽入： Yui Horie
富竹ジロウ： Toru Okawa
鷹野三四： Miki Ito
入江京介： Toshihiko Seki
大石蔵人： Chafurin ..
Album was composed by and was released on December 29, 2007. Soundtrack consists of 4 tracks tracks with duration over about 55 minutes. Album was released by Frontier Works.
CD 1
| 1 | 「ひぐらしのなく頃に解」 ～character case book～ スペシャルミックスメドレー | 05:32 | |
| 2 | ・一、失われた記憶を求めて | 21:04 |  |
| 3 | 魅音のオヤシロさまランド | 12:20 | |
| 4 | 見参!雛見沢・ウルブラザーズ | 16:45 | |
