Google at a Los Angeles event tonight unveiled its widely expected advanced music search feature. The addition (a video of which is available below) automatically parses regular searches for music from all four major labels and automatically filters it by artist, album or track; users can then either sample or buy the tracks through Lala or MySpace's iLike. Those who use recommendation-based Internet streaming service like iMeem, Pandora or Rhapsody can also find related music.
