Complex sentence: The Gravelberrys disbanded, after several complete lineup changes, in 1995 and while Myers continues to write, record and play sporadic shows, most of his time has been devoted to journalism, which he began in 1995 in Toronto.
Split into simpler sentences: The Gravelberrys disbanded, after several complete lineup changes, in 1995. Since the mid- 1990s, most of Myers' time has been devoted to journalism, which he began in 1995 in Toronto.