Complex sentence: Zappa then moved on to create Zappa Records with distribution through Polygram Records in 1979, and Barking Pumpkin Records in 1981, distributed by Columbia Records.
Split into simpler sentences: Zappa then moved on to create Zappa Records with distribution through Polygram Records in 1979. This was followed by Barking Pumpkin Records in 1981, distributed by Columbia Records.