Something like that, yeah. Just let the user specify the LRC and MP3 filename patterns. You'd probably need to provide a facility (maybe just by letting the user specify a .* in a regular expression) for certain fields/characters to be skipped over, like in your example, that hexidecimal prefix, or like when the MP3 file has extraneous fields that the LRC filenames don't, or vice versa. I guess it could get kinda complex, but if the end user has a good command of regular expressions (assuming that's how the logic works) then it might not be a big deal.