Johnson, B. 2013. Philip Tagg. ‘Scotch Snaps: The Big Picture’. Online video documentary located at http://www.youtube.com/watch?v=3BQAD5uZsLY and also http://tagg.org/ptavmat.htm (1 hour 15 mins). Perfect Beat. 14, 1 (Oct. 2013), 86–87. DOI:https://doi.org/10.1558/prbt.v14i1.86.