In what year was the album “回顧録黒盤 REQUIEM” released by Asriel?

In what year was the album “回顧録黒盤 REQUIEM” released by Asriel?: The album “回顧録黒盤 REQUIEM” was released in 2007 by Asriel, featuring 2 tracks.
What is the most successful song from the album “回顧録黒盤 REQUIEM” by Asriel?: “Silencia” is the biggest hit from the album “回顧録黒盤 REQUIEM” by Asriel.