Complex sentence: Donatelli's day job at the Turner Broadcasting Network brought her into contact with Los Angeles-based associates, deciding to move West, Donatelli met composer, arranger Neal Hefti while he was recording a TV spot, he recommended some excellent pianists and musicians to contact.
Split into simpler sentences: Donatelli's day job at the Turner Broadcasting Network brought her into contact with Los Angeles-based associates and she decided to make the move West. Once arriving in L.A., Donatelli met composer, arranger Neal Hefti while he was recording a TV spot, recommending some excellent pianists and musicians to contact.