Invites have started going out to tech journalists to attend a Google Event on November 16th.  The obvious Spinal Tap reference means that this will most definitely be announcement of the release and expansion of Google Music.

There hasn't been any official word as to what exactly is to be announced; but predictions lean towards the introduction of music purchases, built-in Google+ sharing capabilities and introduction of a html5 music player, making for what could be called a social music app...you already know what we think of Facebook and Spotify's attempt at this, right?

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