sentences:  Hobbs and White began the Hobbs-White Duo that year, playing duo piano works, strict percussion systems, and music for their secondary instruments.Shrapnel became a central member in People's Liberation Music, a popular-music ensemble that included Laurie Scott Baker and Cornelius Cardew.The PTO reformed for a day of concerts at the Conway Hall, London, in 2001, in remembrance of the twentieth anniversary of Cardew's death.