I want to work on a new song, but I

I want to work on a new song, but I can't decide if I should focus on the lyrics or the melody.

Results (Chinese Traditional) 1:

我想要工作一首新歌，但我不能決定是否我應該注重歌詞和旋律。

Results (Chinese Traditional) 2:

我要工作一首新歌，但我不能決定我是否應該集中在歌詞或旋律。

Results (Chinese Traditional) 3:

我想做一首新歌，但我不能决定我是否應該集中於歌詞或旋律。