The Xbox music app is notorious for its slow performance. Maybe what you're experiencing is some extreme form of lag? Do you have a lot of music stored in your library?
I do have a lot of music, but I don't have any locally stored. It's all just streaming from my Xbox Music collection. However, I gave this a try and launched the app and let it sit on the black screen for about 5 minutes and the app finally loaded. Not sure if the music played a factor into it, cause it is all streaming, though. I'll just chalk this up to bad performance on behalf of the Xbox Music app. Thanks. On a side note, now that the app has loaded, whenever I try to launch the app, it loads immediately. Weird.
have you tried pressing back when you're on a blank screen?
it may boot you back to start, but I works for me afterwards
still waiting for foxes...
Yeah, when the app launched and sat on the black screen, the phone was still fully responsive. I could push back and exit, hold back and launch the app selector, push home and return to the Start Screen, pull the notification center down, etc etc etc. It was just sitting on the black screen as if the app loaded, but nothing was showing on the screen. Problem seems fixed now, though.
Thanks to everyone who responded.
Edit: PS - This app is terrible, performance wise. I've been on Windows Phone since WP8 launched with the L920 and I never had problems with music when using the Music + Video hub. Never used the Xbox Music app until I updated to the WP8.1 DP and was forced to do so. Now I'm experiencing all kinds of issues with it taking forever to load and when it does, taking forever to play songs and load artists, songs, albums, etc lists.... This app needs some TLC (not T-Boz, Left Eye, and Chilli) fast...