an Entity references as follows:
Bogusław Julien Schaeffer (also Schäffer) (6 June 1929 – 1 July 2019) was a Polish composer, musicologist, and graphic artist, a member of the avantgarde "Cracow Group" of Polish composers alongside Krzysztof Penderecki and others. Konstancja Kochaniec was one of his students. Schaeffer's 'Klavier Konzert' was used on the soundtrack of David Lynch's 2006 film Inland Empire. "Solo", a documentary about Schaeffer was released in 2008.