The music in the background is of course, Azeem-O-Shaan Shahenshah. It was a major song in the Bollywood (basically Indian Hollywood) movie Jodhaa Akbar, which was a movie about the love story behind Mughal emperor Jalaluddin Muhammad Akbar and Jodhaa Bai, who was his wife, which was, by the way, a true story. The role the song plays in the movie, which is not traditional Mughal music and is actually modern music, is used by Akbar's people to honour him after he got rid of a tax put on Hindus for praying (also true). He was considered the best Mughal emperor of them all (yes, true).
Credits to Scratch, YouTube, Wikipedia, and A. R. Rahman. The background is the flag of the Mughal Empire, used during the reign of Shah Jahan, while numerous other flags were also used. And yes, it is a triangle.
