Question: Who has performed with more band, Trey Anastasio or Sarah Nixey?

Related documents: [0]  [DOC] Sarah Anne Nixey (born 21 December 1973 in Dorset, England) is a British singer songwriter, best known as the vocalist in Black Box Recorder. Her debut solo album, "Sing, Memory", was released on 19 February 2007, followed by "Brave Tin Soldiers", released on 9 May 2011. Nixey currently lives in London with her husband, music producer Jimmy Hogarth, whom she married in late 2010 and has one son, Reuben (born late 2007) and a daughter, Lola (born late 2012). Nixey has a daughter, Ava (born 2001) from her previous marriage with John Moore. [END] 
[1]  [DOC] Ernest Joseph "Trey" Anastasio III ( , born September 30, 1964) is an American guitarist, composer, and vocalist noted for his work with the band Phish, and his solo career, including the Trey Anastasio Band and the orchestral "Evenings with Trey Anastasio" performed with the New York Philharmonic, the Los Angeles Philharmonic, the Atlanta Symphony Orchestra, the Baltimore Symphony, the Pittsburgh Symphony, and the Colorado Symphony. [END]  
Answer: Trey Anastasio
Trey Anastasio