the piano background of this video

By | October 27, 2017

I am not intending to promote any video or political information. However, when I was listening to this video, the background music amazed me.

What is the background music of this video? It is more clear from 1:44 (on headphone/headset but not laptop speaker). This is my question for many of other musics as well. If there is any tool for searching the background music online, please let me know.