As well as composing prolifically , Dupré prepared study editions of the organ works of Bach , Handel , Mozart , Liszt , Mendelssohn , Schumann , César Franck , and Alexander Glazunov .
As well as composing lots of music , Dupré prepared study editions of the organ works of Bach , Handel , Mozart , Liszt , Mendelssohn , Schumann , César Franck , and Alexander Glazunov .