Öll Birtan (track)
by Björk
Öll Birtan appears on the following album(s) by Björk:
- Medúlla (track #5) (this album) (2004)
Upcoming concerts
Listen to Öll Birtan on YouTube
Öll Birtan 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 |
|---|---|---|---|---|
| ! | 11/28/2025 18:15 | Exist-en-ciel | 55,039 | 71/100 |
| ! | 11/23/2025 21:06 |  LukasAntoine00s | 5,184 | 80/100 |
| ! | 08/31/2025 14:34 |  ExTeaSea | 12,264 | 85/100 |
| ! | 03/30/2024 19:38 | phmusic | 62,859 | 100/100 |
| ! | 10/11/2023 00:44 | Toroldo | 1,677 | 86/100 |
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 has a Bayesian average rating of 74.4/100, a mean average of 74.2/100, and a trimmed mean (excluding outliers) of 74.2/100. The standard deviation for this track is 13.2.
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