:::I wish I could find the owner of the notes and Octaves site (it was on freehostz and geocities).  Granted, geocities isn't the most reliable of web server hosts, but the site did have consistently reliable information (by music enthusiasts anyway).  You will forever have opinion-ated derivations in Britney or Christina.  Most (including myself) with a tuner can verify a few of the pitches listed and see the accuracy.  It doesn't stop the idiots that fight over a C# vs. a D-flat, but it allows the semi-educated a way to see how the singers rank.  I think if we could come to a consensus about what the statistics are (not just for a particular singer, but over all), the level of creduous edits will sharply decrease)