The role of a music conductor on stage is as follows:

1. Prompt the performers. A work is often large in scale, and performers often cannot remember all the details required during rehearsal while reading the score. At this time, the conductor's gestures on the stage will serve as a reminder.

2. Decide on some treatments that cannot be quantified. For example, if a performer remembers that a certain conductor asked for a slow down or a fast pace, how much slower or faster, where to start slowing down, where to return to the original speed, etc., these cannot be quantified on the music score. They can only be seen. Conduct on-the-spot expression, because art requires emotion, and it cannot be written down.

3. Act on the spot. The performance itself will put people in a state of excitement. The conductor often bursts out passion and ideas during the performance that have not been seen in rehearsals. Therefore, the performer must pay attention to the conductor's movements on the stage and cooperate with the conductor tacitly. Once the conductor comes up with something that has not been done in the rehearsal, the performers should react quickly and express it immediately. This kind of improvisation is often quite wonderful and unrepeatable.

4. Expressiveness and enhance the appeal of the work. This is not the case for all conductors. Each conductor has his or her own style. Some conductors seem silent and their passion is in their hearts and hands. Some conductors are very performative. While the music conveys emotions, the conductor himself also They are using body movements to convey their emotions to the audience. In other words, some conductors do have the element of conducting for the audience, such as the most typical Japanese conductor Seiji Ozawa.

The leader or commander of the operation takes an overview of the overall situation and issues instructions for the entire operation period in accordance with the rules of operational guidance, becoming the operational commander. Combat command science is a discipline that studies the laws of combat command and guides the practice of combat command. It occupies a core position in the discipline system of military command science. The main tasks of combat command science are to summarize the practical experience of combat command, reveal the basic laws of combat command, clarify the principles of combat command, and explore effective ways and methods to correctly implement combat command. Researching and developing combat command theory is important for strengthening the construction of our army's combat command system, improving the combat command capabilities of commanders at all levels, cultivating high-quality command talents who can adapt to modern technology, especially operations under high-tech conditions, and completing combat command efficiently. task, which plays a very important role. All military powers in the world attach great importance to the study of combat command theory. Whether it is the ancient art of war or the related disciplines of modern military science, the combat command theory contained in it has influenced the development of combat command practice in different historical periods, and has played a foundational role in establishing and developing the specialized discipline of combat command.