2.1/2.2/2.3/2.4 – USE VIDEO SOFTWARE TOOLS TO COMBINE AND EDIT SEQUENCES

I split the  audio by using the unblinking tool  which helped me to unlink both the audio and the video from each other.

Adding my music was the next thing i needed to do by adding a a track to the timeline bellow the clip.

I was using time codes and also using the preview tab so i know where to cut and paste if needed.
On my movie i didn't  use the editing transition because i made it just to cut out to the next scene. At the end i rendered preview and then export it so its need and not laggy.