Complex sentence: In the early years of BT's career (roughly 1995--2000), he became a pioneering artist in the trance genre, despite the fact that he is not truly a DJ, and does not claim to be one.
Split into simpler sentences: In the early years of BT's career (roughly 1995-2000), he became a pioneering artist in the trance genre. Despite the fact that he is not truly a DJ, and does not claim to be one.