Progressive Rock Top Albums / 41 - 1 - 2018 - all countries

Based on members ratings & PA algorithm

Here is some details about how we calculate the average rating of an album and the rank of an album.

Average rating: The classic calculation of the average but more weight is affected to the rating of progarchives.com collaborators and to rating with reviews.
- Rating only: Weight = 1
- Review by members : Weight = 10
- Review by PA Collaborators : Weight = 20
Rank of an album: We use a calculation that compare an album average rating and number of ratings over all others albums in the query using this theory (http://en.wikipedia.org/wiki/Weighted_average)
By default, only albums with the average ratings above the average ratings of the requested query are displayed in theses lists, you can control this value in the parameters

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Rank	Cover	Ratings	Title Artist	Genre (Record Type)	BUY
1		4.17 \| 186 ratings QWR = 4.1135	Blurring the Lines ... A Democracy Manifest Ovrfwrd	Heavy Prog Studio, 2018	Shop
2		3.96 \| 178 ratings QWR = 3.9250	Tribus The Windmill	Heavy Prog Studio, 2018	Shop
3		3.92 \| 121 ratings QWR = 3.8825	Zea Mice Mother Turtle	Heavy Prog Studio, 2018	Shop
4		3.95 \| 27 ratings QWR = 3.8359	The Day Is Done Karmamoi	Heavy Prog Studio, 2018	Shop
5		3.89 \| 47 ratings QWR = 3.8326	Perfectly Flawed Pinn Dropp	Heavy Prog Studio, 2018	Shop
6		3.85 \| 30 ratings QWR = 3.7925	Night Shadow Daniel Eliseev Project (D.E.P.)	Heavy Prog Studio, 2018	Shop
7		3.84 \| 36 ratings QWR = 3.7890	Early Light After The Fall	Heavy Prog Studio, 2018	Shop
8		3.76 \| 40 ratings QWR = 3.7434	Random Acts of Liberation Dilemma	Heavy Prog Studio, 2018	Shop
9		3.75 \| 27 ratings QWR = 3.7399	Cycles Phi	Heavy Prog Studio, 2018	Shop