Bassist TATSUYA (タツヤ) was said to have previously been in a band called “クレタ シェンヌ”. If you search for that phrase, the only result is the visual kei band krεt a Sεn. However, that band [as far as we know] didn't form until 2001. Even if they did form years earlier than we know, they were active only in Hokkaido (北海道), which is many hours away from Chiba (千葉).

In other words, it seems highly unlikely that TATSUYA (タツヤ) was in krεt a Sεn, and details about his “クレタ シェンヌ” are completely unknown.