Cultural Overlay

Where you come from, what you believe in, what you wear, all shows a sense of who you are and where you have been brouhgt up.
I see overlay as a build up of things something being forced, therefore cultural overlay would mean to me a uild up of different cultures all coming together to form an overlap in society, for example: In the centre of Birmingham there are pockets of different cultures that come together, such as: Chinatown, Irishtown and quite a few different areas for different religions to take place for catholics, muslims, sikhs etc.
Another example could be at a festival, as many different people come together to watcg music and share interest.
For my summer research i would like to look more into the style at festivals.