Complex sentence: They released a self-titled 6 track EP in 2001, which led to an appearance at the long-running Metal For The Brain festival in Canberra in 2001, and in April 2002 were signed to Sony Records.
Split into simpler sentences: They released a self-titled 6 track EP in 2001. Jerk performed at the long-running Metal For The Brain festival in Canberra in 2001, and in April 2002 were signed to Sony Records.