The one Mozart original here is the famous K448 D major Sonata, played by husband-and-wife team Goldstone and Clemmow with such vitality and rich humanity that I’d happily part with my money for those 24 minutes of sublime genius. Yet the revelations don’t end there. Opening the programme is Busoni’s exuberant two-piano transcription of the Magic Flute Overture, whose stereophonic interplay becomes at times like experiencing a game of musical ping-pong, especially when listened to on headphones. Then there’s the delightful K283 G major Sonata with an additional piano part by Grieg, who,as Goldstone points out in his exemplary booklet note, really lets his hair down with the finale’s second theme by adding a Hardanger-style bass. No less effective is Goldstone’s two-piano transcription of the extraordinary K617 Adagio and Rondo, although the prize item is his stunning realisation of fragments for a B flat Sonata which he has lovingly expanded from around three and a half minutes of music to a full scale work in three movements, The result is a tour de force that is no mere academic reconstruction but a living, breathing work of which even the master would surely have been proud.