Complex sentence: He then went on to study law at the Australian National University and it was during this time that he met long-time You Am I band mate Andy Kent (bass player), who was originally You Am I's sound mixer.
Split into simpler sentences: He then went on to study law at the Australian National University. It was during this time that he met long time You Am I band mate, Andy Kent (bass player), who originally was You Am I's sound mixer.