Complex sentence: After leaving Size 14, Robt Ptak started bands Artificial Joy NYC and then finally The Bastard Kings Of Rock much of the material for Artificial Joy NYC was material he had wrote under the name of Artificial Joy during his time living in LA and with Size 14.
Split into simpler sentences: After leaving Size 14, Robt Ptak started bands Artificial Joy NYC and then The Bastard Kings Of Rock. Much of the material for Artificial Joy NYC was material he had written under the name of Artificial Joy during his time living in Los Angeles and with Size 14.