1. Playlist must be scroll following the current song. You always must see current track.
2. The size of the field to describe the current track has to be less height. This will place more tracks in the playlist.
3. Please make light skin for VOX.
4. The top right part of the window is hardly ever used. It is possible to place the small album cover.
5. By double clicking on the name of the track in the main window or on playlist - show a window with a full description of the track (tags, cover and ets).
PS A lot of useful ideas can be taken from Aimp music player for Windows.