Watch the video here. 

Long-time Grainger aficionado Mark Grant explains some of the piano techniques that Percy Grainger found particularly useful to develop his own style and maximize the use of the instrument.  For example, Grainger used large, extravagant chords, which he termed "harping chords" repeatedly and became a master of the sostenuto pedal (the middle piano petal) to translate the sounds of an orchestra into the piano.  

Mark compares Grainger's playing to other pianists of his day and beyond.  His talk allows Grainger's techniques to come alive for the audience with examples, illustrations and explanations along the way.