[eysquared]

Thats because the team that wrote Groove Music (and Movies & TV) originated from the Zune desktop player and Windows Media Center. In fact it still used a lot of core code from the Zune days for things like library management and DRM.

Source: former dev on the team.

[joenathanone]

The Zune desktop app has to be the best music player I've ever used, it was awesome. I continued to use it long after I moved on from my Zune HD. Sad to see something so awesome abandoned.

[harrygeez]

The UWP music player is slowly but surely shaping up into something just as good, if it weren't for the comical UI density.