Visa (track)
by Charlie Parker & Dizzy Gillespie
Year: 1952
From the album Bird & Diz (track #8)
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Visa appears on the following album(s) by Charlie Parker & Dizzy Gillespie:
- Bird & Diz (track #8) (this album) (1952)
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Condition: New
eBay
Condition: Used
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Visa 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 |
|---|---|---|---|---|
| ! | 12/21/2025 20:34 | Exist-en-ciel | 78,186 | 70/100 |
| ! | 10/27/2022 13:19 | Fevernova | 34,272 | 82/100 |
| ! | 10/25/2022 12:09 | LosWochos | 310,579 | 80/100 |
| ! | 05/19/2022 07:40 |  Jboy56 | 39,199 | 78/100 |
| ! | 01/22/2022 17:42 | mostlymor | 86,586 | 80/100 |
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 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 9.9.
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