Progressive rock

Amazon "Progressive" Music CD Sales Top 3

Top 3 graph(Updated in 3/27)

Top 1Queen: Greatest Hits I, II & III - The Platinum Collection (3CD) Queen CDN$ 28.00
Top 2Queen Rock Montreal and Live-Aid [Blu-ray] Queen CDN$ 23.60
Top 3Queen ‎– Greatest Hits Queen CDN$ 12.93

Top 10
Stable Sellers more than 1 month