Circles (track)
by Joe Satriani

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Surfing With The Alien (10 tracks)

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Hill Of The Skull This track (#7)
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Lords Of Karma

Circles appears on the following album(s) by Joe Satriani:

• Surfing With The Alien (track #7) (this album) (1987)
• Live In San Francisco (track #9) (2001)
• Satriani Live! (track #15) (2006)

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Circles ratings

   Average Rating = (n ÷ (n + m)) × av + (m ÷ (n + m)) × AV
where:
av = trimmed mean average rating an item has currently received.
n = number of ratings an item has currently received.
m = minimum number of ratings required for an item to appear in a 'top-rated' chart (currently 10).
AV = the site mean average rating.

Rating metrics: Outliers can be removed when calculating a mean average to dampen the effects of ratings outside the normal distribution. This figure is provided as the trimmed mean. A high standard deviation can be legitimate, but can sometimes indicate 'gaming' is occurring. Consider a simplified example* of an item receiving ratings of 100, 50, & 0. The mean average rating would be 50. However, ratings of 55, 50 & 45 could also result in the same average. The second average might be more trusted because there is more consensus around a particular rating (a lower deviation).
(*In practice, some tracks can have several thousand ratings)
This track has a Bayesian average rating of 76.9/100, a mean average of 77.4/100, and a trimmed mean (excluding outliers) of 77.4/100. The standard deviation for this track is 10.0.

• Related links:
• Top tracks by Joe Satriani
• Top tracks of the 1980s
• Top tracks of 1987

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