Robert Wilson has been played on NTS in shows including In Focus, featured first on 31 May 2016. Songs played include Knee Play 1, A Letter To Queen Victoria: The Sundance Kid Is Beautiful (Excerpt) and Knee 5.

Robert Wilson (2 January 1907 – 25 September 1964) was a Scottish tenor.

After beginning his career with the Rothesay Entertainers in Scotland, Wilson joined the D'Oyly Carte Opera Company, with whom he performed from 1931 to 1937. He then began a long solo career in concerts, radio, variety and recording, becoming known especially for his performances of Scottish songs.

http://en.wikipedia.org/wiki/RobertWilson(tenor)