Ptolemy (track)
by Aphex Twin
Year: 1992
From the album Selected Ambient Works 85-92 (track #10)
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Ptolemy appears on the following album(s) by Aphex Twin:
- Selected Ambient Works 85-92 (track #10) (this album) (1992)
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Condition: New
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Ptolemy ratings
Average Rating = (n ÷ (n + m)) × av + (m ÷ (n + m)) × AVwhere:
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 | Date updated | Member | Track ratings | Avg. track rating |
|---|---|---|---|---|
| ! | 3 days ago |  AAL2014 | 34,866 | 76/100 |
| ! | 11/20/2025 20:03 | Exist-en-ciel | 46,989 | 70/100 |
| ! | 08/30/2025 20:50 |  ExTeaSea | 12,264 | 85/100 |
| ! | 07/24/2025 19:29 | Toroldo | 1,677 | 86/100 |
| ! | 06/04/2025 06:15 | miltiadis2001 | 1,624 | 90/100 |
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 is rated in the top 2% of all tracks on BestEverAlbums.com. This track has a Bayesian average rating of 84.8/100, a mean average of 83.8/100, and a trimmed mean (excluding outliers) of 85.4/100. The standard deviation for this track is 12.8.
Ptolemy favourites
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Ptolemy comments
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OKC1 07/04/2014 00:06 | #115940
Ptolemy is Pretty much my Dream Song. Soft Ambient Synths, Warm, Creeping Bass, and a Laid back Beat.
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