This has been in my mind for some time now. Rock Music and Ghazals. It's hard to even keep them together in the same sentence; but I say they share a lot of things. Both are lyrics-centric; both are considered to be "alternative", and have spanwned entire cultures.
So one's slow and smooth and hardly ever has a beat attached, while the other utilizes electrically powered and decibel pumping instruments to put its point across; but the passion of the vocalist, and the captivation of the audience; is identical.
As an experimental point in case, consider this phrase from a Mirza Ghalib (who else) ghazal -
"Ragon mein daudte firne ke hum nahin kaayal,
jo aankh hi se na nikla wo lahoo kya hai"
Lets do a simple conversion to english-
"I'm not a fan of flowing in the veins,
if it ain't falling from the eyes, it ain't blood."
Could this not easily be part of a heavy rock song?
Perhaps it's that our different environments shape us in different ways, moulding the ways we react to stimuli and express our emotions. But do we feel different? Sure, all of us feel differently for different things, but cannot two people feel similarly for two entirely separate things?
Yes. That is what keeps us as a single race. Our common feelings. And in this world of infinite permutations, we can sometimes find instances of two completely unrelated occurences joined by the strong fabric of human feelings.
And hence, in strange and unexpected ways, do the separate strings of cultures and civilizations meet.