The first set of codes will stop (also restart ) the music that is presently playing from a <bgsound src="...." loop="5"> command. The attribute of value="??????" may say what you wish and text="?????" is for the text color of the value="????" you picked. The action="..." attribute should be a stopper type of wav as I've used. In this example I used a blank wav http://www.wtv-zone.com/bluefox/midis/blank.wav which you may transload to your server.
Either form method="get" or method="post" works at least for me in a post, testbed, web page or e-mail. The below will start the music and also turn it off. This is for if you do not use a sound command within the body of either e-mail or a web page.