the painters, writers, musicians, and other artists whose ideas, styles, and methods are very original or modern in comparison to the period in which they live, or the work of these artists

New York is the international capital of the musical avant-garde. 纽约是世界先锋派音乐之都。

Avant-garde ideas, styles, and methods are very original or modern in comparison to the period in which they happen.

avant-garde art/cinema/painting 先锋派艺术／电影／画作

It was one of the first avant-garde works to appeal to a wide audience. 这是受到观众广泛好评的首批先锋派作品之一。