How do I preview Rock Band Network tracks on my PlayStation 3?

To preview Rock Band Network songs on the PlayStation 3:

  1. Go to the Settings tab on the XMB (second from the left)
  2. Choose Security Settings (third from the bottom)
  3. Choose Parental Control
  4. Enter your password (the default is "0000")
  5. Set it to "off";
  6. Enjoy!

You'll need to be in the Rock Band Music Store in order to hear song previews, as the regular PSN store doesn't host the song preview files. Alternatively, you can always listen to full-song previews online at places like Spotify or YouTube.