
Formulate an answer to this elaborate question: Dancemania Speed Presents Happy Ravers is a compilation album of "Dancemania"'s "Speed" series, released by EMI Music Japan in which year, the album features fast-paced techno, and happy hardcore music, a genre of hard dance typified by a very fast tempo (usually around 160–190 BPM), often coupled with solo vocals or sentimental lyrics?


2001
