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) - 19px
Windows Media Player - 20px
Windows Explorer - 21px
iTunes - 22px
eztv (Torrent site) - 22pxMusicBee (Extended Album View) - 24px
iTunes (Extended Album View) - 25px
kickass (Torrent site) - 27px
Windows 8.1 Music App (TOUCH) - 50px
As 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.