Midi Soundtrack
Jigsaw programs normally come with their own soundtrack so why not add your own. Simply download your favourite (royalty-free) track to the folder containing the document, and add the following Javascript to the body of your html file (ie after the <body> tag).
<SCRIPT LANGUAGE="JavaScript">
var MSIE=navigator.userAgent.indexOf("MSIE");
var NETS=navigator.userAgent.indexOf("Netscape");
var OPER=navigator.userAgent.indexOf("Opera");
if((MSIE>-1) || (OPER>-1)) {
document.write("<BGSOUND SRC=MYFILE.mid LOOP=INFINITE>");
} else {
document.write("<EMBED SRC=MYFILE.mid AUTOSTART=TRUE ");
document.write("HIDDEN=true VOLUME=100 LOOP=TRUE>");
}
</SCRIPT>
Browsers can also play mp3 or wav files. Of course it is just as simple to have a music program playing concurrently.
Classical Music Archives contains most well-known classical pieces in midi format: