Fix for Musixmatch multi-part lyrics
Fix for Musixmatch multi-part lyrics

Sometimes Musixmatch lyrics come in 2 parts.
Also, sometime non-existent lyrics return some content
beetbox/beets,beetbox/beets,ibmibmibm/beets,ibmibmibm/beets,beetbox/beets,beetbox/beets,ibmibmibm/beets,ibmibmibm/beets