Earlier this week Microsoft released Windows Phone 8.1 developers preview. The software itself was unveiled at BUILD 2014 and even though its not going to officially roll out until summer, Microsoft is letting developers and anyone with a compatible device toy around with the preview. Those who had installed it felt that the Xbox Music app needed some work. Microsoft has heard them. Redmond has confirmed that an Xbox Music update for Windows Phone 8.1 is going to be released next week.