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The payoff at the end of any search within the Travel app is this Booking pane. Bing's web-based searches offer the same results; this presentation removes some of the friction.
When you add local or network locations to your Music library in Windows Explorer, the contents show up here, in the My Music section of the Metro style music app. Scroll to the right and you'll go to the Zune Marketplace, which is in the process of being rebranded under the Xbox moniker.
These Metro style tiles are clean and neat, but click or tap an artist's name and things get confusing quickly. The resulting details view shows a continuous song list rather than albums. That works great with a small music collection, not so well for artists with a large number of albums.