Bing has been a bit of a surprise by Microsoft, though an integrated stab into music appeared crippled on Monday. In testing, a Zune-powered, ‘playable search’ result refused to play, at least in Google Chrome and Firefox. Instead, a pop-up window offered an unexpected ‘coming soon’ result after serving no music, despite a launch last week. “Coming Soon: Zune and Bing are working to bring you closer to the music you love,” the confusing pop-up read. “Please come back later.”

Perhaps a location problem, as the larger Bing Entertainment is a US-only launch. But from the zip code of Santa Monica, Bing clearly recognized “Your Location: United States”.

Sort of a non-starter, and easy reason to jump back into Google’s integrated music results. Still, after the bugs are worked out, this integration may have some potential. A search from Drake, for example, offers some top songs and upcoming tour dates, as well as opportunities to link into networks like Facebook and Twitter. On top of that that, a number of well-integrated tabs contain images, YouTube videos, albums, an integrated Wikipedia result, and ticket-buying opportunities.

Bing is also layering Zune, iTunes, and AmazonMP3 buy options for about five million songs, as well as associated lyrics. Those also worked, for those willing to stick around.