sentences:  It was only after the release of their first album release on Speedstar Records, "Ningen Program", that they found a new bassist, Okamine Koushu, though he wasn't immediately made a full-time member.He was however involved in recording of the next album, "Shinzou Orchestra", and while touring for the album, the band announced that he was now an official member.In the period when The Back Horn were between bassists, vocalist Yamada overtook bass duties.