@endeavour1934:
-Opening and saving those files with Paint.net will make things easier for the transparency of bitmap files win MB.
-In your pic of controls on Now Playing Panel
http://i.imgur.com/hGR1cb2.jpg I think album and player controls would fit better at the bottom. Having the playlist on top of them. A small problem is that depending on the width of that panel, the player controls will go up or down, so maybe is more intuitive having them always on the bottom. But sure its a minor thing.
-I like the left fixed column of buttons, but depending on the button, it has autohide or not. I hope it keeps it simple and works well always, having autohide enabled or not.
@Steven:
-When a new user puts his music library in the hands of a new music player, he has the fear it could break his files and hours and hours of work on them while learning the new software. Now you have changed the way MB processes music in background, could be implemented a some safety measure to be sure no file will be modified by MB?
-How MB would handle locked files? Would stop the process of editing files in that moment or would move the problematic files to the end of the queue?
-The .lrc lyrics, the rewriting of them to unicode wich is breaking how minilyrics present them. Please don't rewrite the external lyrics when don't needed.
-One thing i find confussing is the Now playing playlist and the sorting of its elements. I think would be great redesigning it in the way that we would always see the actual queue. So if we start a queue sorted by filename but we change the sorting by played date, then the next file in queue after the playing one would be automatically the one we see in the screen (the following one by played date). I got the idea from 1by1, it's so simple and works really well