Elegance of Being Drunk

"The lights grow brighter as the earth lurches away from the sun, and now the orchestra is playing yellow cocktail music, and the opera of voices pitches a key higher." (40)

I find this sentence amusing because it is elegantly describing what is going on at the party and how drunk everyone is. The lights in the garden get brighter as the sun goes down. This describes how the partygoers are so drunk that they are becoming more sensitive to light, causing the lights to seem brighter. He also describes how "the earth lurches away from the sun." It sounds like a more violent phrase then what was actually going on. It is describing the drunkenness of the partygoers and how the world lurches around them rather than it rotating smoothly.  It also describes the music as the color yellow, which is usually not used to describe music. I think this is another sign of their drunkenness. Basically, the whole sentence elegantly and colorfully describes the drunken partygoers at Gatsby's party and how the world is "spinning around them."