The music of Percy Grainger (1882–1961) for piano/s four hands ranges from a few intimate duets to a significant body of quasi-orchestral concert works. The great majority were written for two instruments and they exploit this rich resource to the full. Given that almost all were originally works for chamber, orchestral, wind-band or choral forces, pianists have the widest possible range of sound references. Leading Grainger scholar and performer, Penelope Thwaites, has newly recorded a fourth CD with fellow Australian pianist, Timothy Young, to add to the three existing CDs of Grainger’s music she recorded with John Lavender for the Pearl label in the 1990s. All four CDs contain many world premieres and provide a fascinating insight into Grainger’s pianistic output.