The rather unusual title of Flute Sonata for a work for orchestra - in fact a Concerto - is explained by the fact that it was originally written by Francis Poulenc the French composer who died in1963 and was a member of the composers who were known as 'Les Six' for Flute and Piano. This is the full score. With his usual skill and expertise Sir Lennox Berkeley has 'converted' this short work i…