Video recording of the first performance of 'The Whirlies' by J. Simon van der Walt. Commissioned by the Scottish Philharmonic Orchestra and first performed by them on 17/11/2008 at Òran Mór in Glasgow, with conductor Peter Cynfryn Jones and artistic director: Gordon Rigby. The improvised part was taken by the composer, using an amplifed banjo ukulele originally belonging to his grandfather through a circuit-bent effects unit.
More info http://www.jsimonvanderwalt.com/catalog/whirlies.html