Is music can bring us to a peace?

There is not a chance in hell that music can bring peace. You can't get 10,000 people together without someone fighting.

Music inevitably teaches people. Since music deals largely with the inexpressible facets of humanity, it relates well to the many inexpressible facets of war. All wars produce songs and music. In many cases those songs have nothing to do with war, they relate to peace. "We'll Meet Again", "Lilli Marlene", and other songs were wartime songs... about things that transcended the war. Actual military music could be simplified as a form of glorification, but even something as gung ho as "The Battle Hymn Of The Republic" goes much further than war, into a nearly religious perspective. "When Johnny Comes Marching Home" is also military, but looking beyond the war. So music creates a logic about war, and how people deal with it. Humanity changes with experience, but to change it must be able to accept what it learns. Experience teaches, and music explains and gives perspectives. All wars end. Music goes on forever. Peace? Sooner or later.

No. There is no way music will bring peace. Nothing will bring peace because it is in man's nature to be involved in conflicts. It has been like that since the beginning of time.