Turnering in his grave

So, for the first time ever, this year's Turner Prize goes to a sound artist, Susan Philipsz, for her renditions of Scottish folk songs. Cue debate re whether that's music not art and whether The Proclaimers should get it next year. Interestingly, the sound most people heard at the ceremony was that made by art students just outside on Tate Britain's steps, in protest against the recent hike in tuition fees. What would Joseph Mallard William Turner make of it all eh?