But it has to go somewhere. Otherwise, you wouldn't be reading this in English. Otherwise, you wouldn't be reading it. Gutenberg started the process that led to general literacy and romance writers. Marked the crossover of the popular music of Afro-Americans into the mainstream.
Primary significance is symbolic.
The coalescence of the young around a music of their own begins the inversion of the social paradigm in which the older controlled the cultural and economic options of the younger. This dreadnaught of change is being replicated almost everywhere direct satellite broadcast can be downlinked. Martin Luther seeds the birth of Protestantism. Plenty of American Indians knew exactly where they were. And the Norse had probably done this 500 years before.