Donald Macleod programme considers the composer's long and fruitful friendship with his composition teacher, the formidable Nadia Boulanger, who coaxed him to write an organ symphony and also put him in touch with the Russian-born conductor Serge Koussevitsky. Grohg - ballet in one act Cleveland Orchestra Oliver Knussen (conductor) Argo 443 203-2 - Trs 1-6 Symphony for Orchestra and Organ Dallas Symphony Orchestra Andrew Litton (conductor) Delos DE 3221 - Trs 13-15.