sentences:  He even auditioned a young Julie Andrews.When the BBC briefly switched to broadcasting only light music in September 1939, MacPherson played up to twelve hours per day, also filling in with announcements and programme-notes whilst the organisation hastily evacuated its staff from London to various locations around the British Isles.Pressure from listeners and the press, who quickly tired of this seemingly unending diet of theatre organ day after day, soon caused the BBC to resume broadcasting a wider range of music.