He wrote his musicals in the style of operetta and often composed his music to the librettos of Christopher Hassall .
After the war , Novello contributed numbers to several successful musical comedies and was eventually commissioned to write the scores of complete shows .
Novello wrote Novello 's musicals in the style of operetta and often composed his music to the librettos of Christopher Hassall .
After the war , Novello contributed numbers to several successful musical comedies and was eventually commissioned to write the scores of complete shows .