Free Form Guitar (track)
by Chicago Transit Authority
Year: 1969
From the album Chicago Transit Authority (track #7)
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Free Form Guitar appears on the following album(s) by Chicago Transit Authority:
- Chicago Transit Authority (track #7) (this album) (1969)
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Free Form Guitar 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.
Showing latest 5 ratings for this track. | Show all 58 ratings for this track.
| Rating | Date updated | Member | Track ratings | Avg. track rating |
|---|---|---|---|---|
| ! | 07/15/2026 17:16 | Johnnyo | 44,861 | 80/100 |
| ! | 01/13/2026 17:28 | alexandermause | 17,953 | 85/100 |
| ! | 12/15/2025 22:38 | Exist-en-ciel | 166,600 | 71/100 |
| ! | 11/20/2025 12:01 | plasmicmist | 7,586 | 91/100 |
| ! | 09/22/2025 22:19 |  AAL2014 | 39,969 | 76/100 |
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 65.1/100, a mean average of 63.2/100, and a trimmed mean (excluding outliers) of 63.2/100. The standard deviation for this track is 20.9.
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Exactly as it says, it is free form guitar, a nearly 7mins long improvisation guitar instrumental from the amazing Terry Kath. On a level with Hendrix's guitar expressionism and both of the same era, both experimenting.
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