No, you can do the same with any theme which includes a function to loop thru the tracks of an album. All you have to do is place <!--[if(lyrics)]-->*<!--[/if]--> inside the loop.

My suggestion was to place the asterisk after the ;<!--[tracktime/]--> tag, simply beacuse it seems like a natural place to display that kind of information.

In the Default theme.dax you could for instance place the lyrics asterisk after this line:

<!--[track]--><tr><td valign=top><!--[tracknum/]-->.