The main four decades from the 1960s has traditionally been observed as an era of hiatus for rock and roll.[56] Additional lately some authors[weasel words and phrases] have emphasised important improvements and developments in this era without the need of which future developments would not have been achievable.[fifty seven][58] https://vinyl-record-art77419.blogitright.com/34110192/the-definitive-guide-to-rock-music