The amazing Chinese guitarist Xuefei Yang plays Nocturnal After John Dowland, Op.70 by English composer Benjamin Britten at the Boston Guitarfest 2015. This comes via their YouTube where the great vids are getting pumped out at alarming rates. Nocturnal was composed in 1963 by English composer Benjamin Britten for guitarist Julian Bream. It is considered one of the most influential works written in the twentieth century for the classical guitar. Bream premiered the piece on 12 June 1964. Sheet music can be found on Amazon: Nocturnal Op. 70 by Britten.
Video Link & Source: https://youtu.be/M6RfNHWjoJM