First of all, this is an amazing sounding music player to which there are none like it. Before this player I was using AIMP2 which also has incredible sound quality, but after listening to Winyl, there was just something more "full" about the sound. So great job!
I do have a couple suggestions.
1.) Global hot keys. I would like to be able to assign hot keys which can be used whether Winyl has focus or not.
2.) Quick Search. It would be nice if there was a global hot key for searching the library. Basically take the search box thats built into Winyl and make it its own window, where results will show up under it. This would make searching the library much more intuitive if you're only looking for a specific song or artist to quickly add to your playlist.