[DataHero]

Only doing so in postbit will not change the rest, no. This is just right out of the top of my head, but what you could do is to make a plug-in at global_start (correct me if I'm wrong, anybody?) and use a str_replace() as to replace the variables. For instance, make sure to make your own variable, ie.

PHP Code:

$var1 = /*var of modification(s) or your own*/; 


And use that as to replace the current one, ie:

PHP Code:

$find = $post[musername];
$replace = $yourvar;
$subj = 'Array of strings or so here';

str_replace($find, $replace, $subj); 


Could be wrong as to the approach of method, but there should be a way to globally replace variables instead of ahving to edit each template.