No holiday party is complete without a jazzy guitar riff playing in the background or a bright-lipped brunette cooing about winter.But, what are these pleasant sounds worth?

• 没有爵士即兴重复段作为背景乐，或者一位深褐色头发和浅黑色皮肤、亮嘴唇的女子柔情歌唱冬季，那么就谈不什么节日派对。