Don't parse mxm - just request lrc!

[mrsobakin]

@fashni
This is a simple trick I discovered while writing a bash script to fetch synced lyrics. I was reverse engineering musixmatch's API and found the same URL you did (mxlrc.py / line 17). And, of course, I was not satisfied with the cryptic mxm lyrics format that it returned. But this is where our solutions diverge. You wrote a whole mxm parser, and I... Well, I just YOLO'd it and replaced subtitle_format=mxm with subtitle_format=lrc. And to my surprise it worked.

It's nice to have your parser, just in case musixmatch will decide to remove lrc support. But if your goal is to make a lyrics fetcher - just change the subtitle_format, and the code will become 10x smaller and simpler.