Question: What nationality was the composer of Drei Lieder?
Sentence (from "Karlheinz Stockhausen"): Karlheinz Stockhausen (] ; 22 August 1928 – 5 December 2007) was a German composer, widely acknowledged by critics as one of the most important (; ; ; ) but also controversial composers of the 20th and early 21st centuries.
Relevant evidence: Yes