Google already embeds YouTube videos in search results, however now
it has launched a built in music playback on search results.
Just search for an artist, an album, a song or even a few words from the lyrics and you get song previews in the search results.
6% of all searches on Google are for music or music-related information and now
when you get the results you can play a preview of the song and buy it right there with one of
Google's partner music sales sites.
This will leverage enormous impulse buying of music tracks.
Here's info from Google about this new feature: