What were some of the conditions, which prevented music in the middle ages from developing more rapidly?

most people such as me i dont have one but if   i did i would mostly likely quit my job if the economy was down cylcling that means less money if you go to a bigger job that is prospering you can earn more wage and still be able to feed yourself or why you work all people want more money then they have guarteed most people like me would switch jobs for a better one with higher wage

the border between arizona and new mexico is a thin, black line; this indicates a state boundary.

its correct: it's a thin line, and it's a state boundary, correct