Soundtrack for unique animation series "Aria" composed by Brazil-flavored Japanese artists Choro Club and Takeshi Seno. Includes extra track "Barcolle - Athena no Uta" (Vo.:Eri Kawai), opening theme "Undine -forest mix" (Vo.: Yui Makino), ending theme "Rainbow - Acoustic Ver." (Vo.: Round Table feat. Nino) and 20 BGM tracks (subject to change).