Concertmaster: The first violinist and assistant conductor in a symphony orchestra.

首席小提琴手：在交响乐队中的第一小提琴手兼助理指挥。

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In nineteen forty-three, Leonard Bernstein became assistant conductor of the New York Philharmonic Orchestra.

VOA: special.2009.08.02

He then became assistant conductor to Leonard Bernstein at the New York Philharmonic.

NPR: Conductor James DePreist

In 1957 he was appointed to his first full-time job, as assistant conductor of the BBC Scottish Orchestra (now the BBC Scottish Symphony Orchestra).

BBC: Obituary: Colin Davis

Should Mr. Levine be unable to conduct on any given night, an assistant conductor would be ready to step in a standard protocol for all Met performances, regardless of the maestro, said general manager Peter Gelb.

WSJ: Met Opera Maestro James Levine Marks Return in Small Steps