As I've said earlier, it's just making it a bit more touch friendly in some places, not making a fully touch interface (that would require at least 40px separation between items!). I think it should look better and people should at least be able to use it with touch devices.
Some people say that it won't show enough information. But for comparison, let me show you a list of... list spacing measured in pixels (at 100% scaling with default font size)
MusicBee (Now Playing) - 19pxWindows Media Player -
20pxWindows Explorer -
21pxiTunes -
22pxeztv (Torrent site) -
22pxMusicBee (Extended Album View) - 24pxiTunes (Extended Album View) -
25pxkickass (Torrent site) -
27pxWindows 8.1 Music App (TOUCH) -
50pxAs you can see, currently MusicBee tops the list, it's even more condensed than a file explorer.
I'm not saying that it should jump to a touch interface (40-50px), maybe just to something between 22-25px.
In the end you're still looking at 2+ hours of playlist (instead of 3+) without scrolling.