The 1.22 version of jwzlyrics for Mac is provided as a free download on our website. The actual developer of this free software for Mac is Jamie Zawinski. The application relates to System Tools.
From the developer:
This MacOS application displays the lyrics for the currently-playing track in iTunes or Spotify. If the track does not have lyrics, then they are downloaded from lyrics.wikia.com if possible. There is also a command to bulk-download the lyrics for all of the songs in the selected playlist.
You may want to check out more Mac applications, such as iRooster, PictureProject or SketchPlugin, which might be related to jwzlyrics.