Great!
But there is a little bug. Unlike Visualiser, Wave Bar is hidden when Artist biography or lyrics are shown in Main panel
of Now Playing panel. Biography/lyrics "text box" is cut-off when Visualiser is used so they don't overlap and Visualiser is visible at the bottom of panel, but for Wave Bar that is not the case and it is hidden.
This bug is present in latest MB (v3.2.6697), not sure for earlier versions.