Once Upon A Time (track) by Air
Once Upon A Time appears on the following album(s) by Air:
- Pocket Symphony (track #2) (this album) (2007)
- Twentyears (track #12) (compilation) (2016)
Upcoming concerts
Listen to Once Upon A Time on YouTube
Once Upon A Time ratings
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 | Date updated | Member | Track ratings | Avg. track rating |
|---|---|---|---|---|
85/100  | 06/01/2025 19:55 | Larynx | | 83/100 |
80/100 | 05/09/2025 15:47 | wizardalien | | 72/100 |
100/100 | 05/27/2024 21:59 | phmusic | | 100/100 |
55/100 | 11/21/2023 09:06 |  AlexSVK | | 62/100 |
80/100 | 03/22/2023 11:22 | Kali | | 74/100 |
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 8% of all tracks on BestEverAlbums.com. This track has a Bayesian average rating of 79.3/100, a mean average of 81.3/100, and a trimmed mean (excluding outliers) of 81.3/100. The standard deviation for this track is 11.6.
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