Musicians and film and television people are the same type of expression, and there are many subdivided roles and their derived professions. The category of musicians usually includes music producers, music supervisors, songwriters, singers, instrumentalists, arrangers, etc. It is an industry with a clear division of roles but there is no shortage of cross-field talents, such as Jay Chou. They work across 3-5 fields before releasing their works. For example, Leehom Wang is responsible for composing music, lyrics and even supervising the production of the songs he sings. So strictly speaking, they are all musicians and not just singers. But when it comes to career division and public image positioning, they only use the role of singer to position and promote externally. A performance singer is a front-end role and a public figure. The influence and effect it can produce far exceeds the role within the industry. Definition and work attributes, the key value of this category is people, and the market value jointly generated by people and works. The division of labor in the category of musicians, such as songwriting and arrangement, belongs to behind-the-scenes roles and definitions. Their greatest value is their content contribution, that is, the value of their works. Their works are highly valuable and influential, as well as their worth and position in the industry. Generally, they do not need to face the public, nor do they need too much market-oriented image packaging. The value of an individual's public image has little correlation with his industry position and the value of his works. A typical example is that if a singer's image is ruined and surrounded by negative news, he is very likely to be banned, and the influence and value of his works will be greatly reduced, because the first value of his career is this "person". As for the behind-the-scenes content contributors and producers among musicians, as long as their works are good, no matter how many negative news and personal incidents there are outside, the value of their works will rarely be affected. In the same way, film and television people are also divided into different roles in front of and behind the scenes. Actors, hosts, etc. are typical of the attributes of working in front of the camera. The public image is very important, just like porcelain. Once a negative incident occurs, it is equivalent to a loss of value. Dropped sharply or even lost market value. The behind-the-scenes workers, including directors, photographers, producers, distribution operators, etc., put the creation of works and business returns as the first priority, and personal events and trends have little impact on the value of the work. The division of labor in the industry is very particular, and many people in the industry will not easily cross the line or eat what others are eating. The reasons include industry rules and differences in interests and professionalism. If Zhang Liangying and Zhang Jie are asked to become songwriters, they may not be happy. If Xiang Xuehuaili Xiaotian is asked to become a front-of-house worker, they may not necessarily have the vocal ability. Therefore, for both musicians, within the industry they pay attention to segmentation, while outside the industry they mostly focus on popularity and popularity. The difference is huge.