The band 's second LP '' Ars Longa Vita Brevis '' featured an arrangement of the Intermezzo from the '' Karelia Suite '' by Jean Sibelius , which the band 's friend Roy Harper had recommended they cover , and the album 's second side was a suite which included an arrangement of a movement from J.S. Bach 's Brandenburg Concerto No . 3 . The group used an orchestra for the first time on some parts of the suite . The band were on the bill at the 1969 Isle of Wight Festival and briefly toured Ireland with Yes and Bonzo Dog Doo-Dah Band which , by all accounts , was fraught with logistical problems
1969 Isle of Wight Festival
Isle of Wight Festival 1969
The Nice