How does music and culture of the Arab world go beyond the borders of these countries?

What will be an ideal response?

• "[T]he people of the Arab world have been ‘on the move' both historically and in the present time. So, the music and the culture of the Arab world spreads out in a diaspora: Rather than being confined to a single geographic location, its people and their traditions are dispersed beyond the boundaries of the region.
• What are some of the aims of this chapter?
• Understand "the routes of [Arab] musical traditions [and]. . . the roots of some of the oldest ideas, philosophies, and theories about [Arab] music [and appreciate] the historical and literary legacy of Arab music-culture . . ."