Complex sentence: Galen performed in his moms performance group Terpsichore Children's Center for Musical Theater Dance in Ann Arbor-and performed at the Cobblestone Farm Center as a pioneer boy.
Split into simpler sentences: Galen performed in his mother's performance group, the Terpsichore Children's Center for Musical Theater Dance, as a child. He once even performed at the Cobblestone Farm Center as a pioneer boy.