How Do I Add Music to a Post?

Can someone tell me how to add music to a post? I promise it isn't something that I will be doing all the time....mister & misses moderators.

It really is important to me.

Do you mean like youtube videos? If so, I think it's [yt]dYuMS_ysQbA[/yt]
The letters between the yt tags are the ones at the end of the youtube vid. The above would show like this.

What I was thinking about was just the music and not the video. Thank you for answering though I really do appreciate it.

I don't think you can. That would be really annoying to have songs on every post.