The point about the music was that it sets the tone well e.g
When you start off in aleroth you hear the flute music and this seems calm and as most of the inhabitants are healers it makes sense.
Also the music is kind of lazy and it would be an ideal place to go on a Sunday,just sit and do nothing because there is nothing to do.
Now Verdists has the violin music and when i think of that i think of opera and ulitmatily the posh and upper class people and as Verdists is a rich town with all the wealthy people there so again this sets the tone very well.
My personal favourite is the music outside aleroth.