악장에서는

In a sentence

• 악장에서는 주제를 처음 도입합니다.

  In the first movement, the theme is introduced.

  Here, '악장에서는' specifies the particular section in a musical piece being discussed, namely the first movement, implying an introductory narrative.

• 악장에서는 악기의 조화가 중요합니다.

  In the movement, the harmony of instruments is important.

  In this context, '악장에서는' conveys the section of the composition under discussion where instrumental harmony plays a key role.

• 악장에서는 감정을 표현하는 멜로디가 돋보입니다.

  In the section, the melody expressing emotion stands out.

  Here, '악장에서는' is used to preface commentary about the emotional expressiveness of the melody in a specific section.