sentences:  Chinese Premier Wen Jiabao's Shanghai African summit in Shanghai presented Miss Ma's artistry to African heads of state (2006) and she earlier represented China at Bravo China in Athens, Greece (2002) and as lead musician for the APEC meeting in Shanghai (1999).Miss Ma is often seen in television music specials on Chinese CCTV and Chinese MTV.Appearing in over 40 CDs, Xiaohui Ma has also composed numerous pieces, including her major works "The Spirit of My Erhu" and "The Story of Two Strings" (premiered at the Beethoven House in Bonn, Germany).