It means something like a kind of dulled grayness or ordinariness of life.

它代表着一种,生活的灰暗，单调。

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It's very like, I feel like it's lots of stone, lots of gray, lots of trench coats, briefcases, fashion,

它很像，我觉得那里满是石头、灰暗、风衣、公文包、时尚、

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So a bright, shiny major and then dark minor.

所以明快,阳光的大调然后是灰暗的小调

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