One of the most difficult "great" albums of all time. (The most difficult?) Roberta Flack's debut. The Grateful Dead balance weirdness and songs. Deep Purple gets harder but stays proggy. Kaleidoscope are awesome. White Noise makes one of the more radical records of the era. Plus, some glam rock. The Cars get slighly artier. Neil Young tries to stay relevant. And the most influential record of 1979.

50th Anniversary of Trout Mask Replica by Captain Beefheart and his Magic Band

50th Anniversary of First Take by Roberta Flack

50th Anniversary of Aoxomoxoa by The Grateful Dead

50th Anniversary of Deep Purple

50th Anniversary of Incredible! Kaleidoscope

50th Anniversary of An Electric Storm by White Noise

45th Anniversary of The Psychomodo by Cockney Rebel

40th Anniversary Candy-O by The Cars

40th Anniversary Unknown Pleasures by Joy Division

40th Anniversary Rust Never Sleeps by Neil Young and Crazy Horse