http://www.bbc.co.uk/news/magazine-19706812
http://m.scotsman.com/scotland-on-sunday/scotland/music-lessons-in-school-are-about-so-much-more-than-how-to-play-janice-galloway-on-free-music-tuition-1-2573862
http://www.limelightmagazine.com.au/Article/316158,the-top-twelve-trills-in-classical-piano.aspx
http://m.guardian.co.uk/music/2012/sep/20/glenn-gould-wilfully-idiotic-genius?cat=music&type=article