Audio: controlling audio start and stop beyond background and frame playing, Not wanting audios to double track.

first, how do you allow a song to play for either one time thru (no looping) or how can I have a song play for a set of frames in the path? I want to be able to play embedded youtube videos without them competing with each other (not have 2 songs playing at once). Is it possible to put a control on the background music so that you can just click the mute button or set a rule where when a video plays, the background music stops?

the second question is how do I name my project? the tab still says untitled. When I publish, can I add keywords for Internet search engines to grab?

thanks.
Terry Mullin,
terry.mullin@heartland.edu
Image may be NSFW.
Clik here to view.