http://en.wikipedia.org/wiki/Benjamin_Lees

http://es.wikipedia.org/wiki/Benjamin_Lees

Wikipedia, 15-11-2012---(Benjamin Lees (January 8, 1924 – May 31, 2010) was a contemporary U.S. composer; born Benjamin George Lisniansky)

Sonata no. 4, p 1978---carpeta del disco (Benjamin Lees; b. in Harbin, China, January 8, 1924, of russian parents, brought to the U.S. as an infant; composer)