Singers of the Philadelphia Symphonic Choir, which performs "The Messiah" with the Philadelphia Orchestra next week, seeks to negotiate wages and work rules.
The Philadelphia Symphonic Choir sings under flowing computer images designed by artist Refik Anadol to produce a real-time installation using digital media, data, and artificial intelligence in response to the Philadelphia Orchestra performance of Beethoven's Missa Solemnis April 7 in Verizon Hall.Read moreTOM GRALISH / Staff Photographer
