It’s taken me a long time to get round to one of the best known 60s numbers. The music, influenced by J S Bach’s Air from Orchestral Suite No. 3 BWV1068 (‘Air on a G string’), was written by the group’s founder and singer Gary Brooker and their organist Matthew Fisher, and the words were by Keith Reid. It was the group’s debut single, recorded in April 1967 and released the following month. It reached No 1 in Britain and No 5 in America, and is one of the most successful records in history with sales of more than 10million. In 1977, it was named joint Best British Pop Single 1952–1977 (with Queen’s Bohemian Rhapsody) at the Brit Awards. In 2004, it was placed at 57 on Rolling Stone’s 500 Greatest Songs of All Time.