こんにちは guys i need help how do あなた add 音楽 to your 動画 on windows movie maker if あなた use it do あなた have to download anything?

click 表示する timeline then place youre song in the corret bar....it should be a wav file i think...anything should be fine asl onhg as its music....and im あなた dont want the 動画 original sound right click on the video and click mute