Complex sentence: In the 1980s and 1990s she was a regular performer in Atlantic City at The Grand and Harrah's, and as of 2011, she works as a piano accompanist in Las Vegas.
Split into simpler sentences: In the 1980s and 1990s she was a regular performer in Atlantic City at The Grand and Harrah's. As of 2011, she works as a piano accompanist in Las Vegas.