Simplify the following text for a Grade 12 native English-speaking person.
Original: He performed John Williams ' `` Air and Simple Gifts '' at the 2009 inauguration ceremony for Barack Obama , along with Yo-Yo Ma ( cello ) , Gabriela Montero ( piano ) and Anthony McGill ( clarinet ) .
Simplified: Perlman performed at Barack Obama 's presidential inauguration . He joined cellist Yo-Yo Ma , pianist Gabriela Montero and clarinetist Anthony McGill .