baendeuga mudaeeseo noraereul yeonjuhaesseo.

The band performed a song on the stage.

Breakdown of baendeuga mudaeeseo noraereul yeonjuhaesseo.

• 노래: the song
• 무대: the stage
• 밴드: the band
• 연주하다: to perform music; play an instrument

Questions & Answers about baendeuga mudaeeseo noraereul yeonjuhaesseo.

What does 가 in 밴드가 mean?

가 is the subject marker. It marks 밴드 as the thing doing the action.

• 밴드가 = the band (as the subject)
• So here, the band is the one that performed.

A learner often compares 가/이 with 은/는:

• 밴드가 무대에서 노래를 연주했어.
  = The band performed a song on stage.
  This simply marks the band as the subject.
• 밴드는 무대에서 노래를 연주했어.
  = As for the band, it performed a song on stage.
  This can sound more topical or contrastive.

So 가 is not translating a separate English word by itself; it is just showing grammatical role.

Why is it 무대에서 and not 무대에?

Because 에서 marks the place where an action happens.

• 무대에서 = on the stage / at the stage, as the location of the performance
• The action 연주했어 happens there

Compare:

• 무대에 갔어 = went to the stage
  (에 often marks destination or location of existence)
• 무대에서 연주했어 = performed on the stage
  (에서 marks where the action takes place)

So in this sentence, 에서 is correct because the band is doing an action on the stage.

What does 를 in 노래를 do?