Heavy
by Iron Butterfly

Heavy by Iron Butterfly
Year: 1968
Release date: 1968-01-22
Overall rank: 9,727th   Overall chart history
Average Rating: 
72/100 (from 48 votes)
  Ratings distribution   Average rating history
Accolades:
Award Top albums of 1968 (130th)
Award Top albums of of the 1960s (698th)
Award Best albums of all time (9,727th)

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Iron Butterfly bestography

Heavy is ranked 2nd best out of 11 albums by Iron Butterfly on BestEverAlbums.com.

The best album by Iron Butterfly is In-A-Gadda-Da-Vida which is ranked number 1862 in the list of all-time albums with a total rank score of 913.

Iron Butterfly album bestography « Higher ranked (1,862nd)
In-A-Gadda-Da-Vida
This album (9,727th)
Heavy
Lower ranked (36,121st) »
Metamorphosis

(N.B. Bestographies include all albums by an artist (and their variations), but do not include albums ranked outside the top 100,000).

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Heavy rankings

Heavy rankings summary
Overall rank: 9,727th | 1960s rank: 698th | 1968 rank: 130th  Overall chart history
Calculated from aggregate positions across 60,000 charts (2 million album rankings).Help Click to see how the rankings are calculated (Last updated: 4 hours ago)

Heavy collection

Heavy ratings

Average Rating: 
72/100 (from 48 votes)
  Ratings distribution Help Average Rating = (n ÷ (n + m)) × av + (m ÷ (n + m)) × AV
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.

Showing latest 3 ratings for this album.  | Show all 48 ratings for this album.

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RatingDate updatedMemberAlbum ratingsAvg. album rating
 
65/100
 !
09/24/2026 14:12 BurndenAce  Ratings distribution  1,34176/100
 
80/100
 !
08/11/2026 13:22 Philly28  Ratings distribution  96869/100
 
70/100
 !
06/04/2026 22:49 Moondance  Ratings distribution  20,86672/100

Rating metrics: Help 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 albums can have several thousand ratings)

This album has a Bayesian average rating of 71.6/100, a mean average of 70.2/100, and a trimmed mean (excluding outliers) of 71.5/100. The standard deviation for this album is 14.4.


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Heavy favourites

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Heavy forum mentions

This album has been referenced 3 times on the forums, Explore the wider forum discussion to see what members have said about it.
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Heavy comments

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"Heavy" by Iron Butterfly is a classic album that represents a defining moment in the evolution of heavy rock music. Released in 1968, this album is a prime example of the band's unique sound, which was characterized by heavy and distorted guitar riffs, extended instrumental sections, and psychedelic elements.
This is not very well know among the album listed when speaking about heavy rock origins. This has got some elements of it but is not very HEAVY yet,

One of the standout tracks on the album is "Iron Butterfly Theme," which features a memorable guitar riff, the distorted guitar is particularly effective
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Even though Iron Butterfly is a talented group of musu=icians, "Heavy" doesn't have a great producer, and the lyrics sometimes contradict the style a bit. The album would be great if the production was a bit better.

Composition: 100
Consistency: 70
Diversity: 75
Instruments: 85
Production: 68
Rhythms: 75
Vocals: 72
545/800 = 78
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Rating:  
85/100
I dont listen to this album as much as I should. Its not their best and definatly not their worst
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