Spiral Balance Movement of Music and Drama in Opera Reform

Opera is a comprehensive art,whose development history is also a history of creation and reform.Music and drama are both the most important basic elements in opera.How to deal with the relationship between them is the core and focus of opera reforms.Opera composers always perform compositions based on their different ideas to handle this relationship.It is clear that the relationship between music and drama in opera displays a spiral development course in which opera goes from embryo to maturity since its birth to 19 century Giuseppe Verdi.