On their first two albums, Led Zeppelin unleashed a barrage of heavy blues and rock riffs, but ‘Led Zeppelin III’ saw the band grow musically. Recorded during the post-psychedelic “getting it together in the country”, early ’70’s phase of music, the band headed to Bron-Yr-Aur,an 18th-century cottage in the Cambrian Mountains in Wales. It was time to take stock, and not get lost in it all, Plant said later. And what better way to keep it real than at a place with no electricity, candles for light, water from a stream and an outside toilet?

‘Led Zeppelin III’ is built on a folk based, acoustic foundation, with six of the 10 tracks built around the sweet strains of Jimmy Pages acoustic Harmony guitar. To emphasise the rustic nature of the album, Zeppelin even changed their appearance, growing facial hair to Hobbit-like proportions and wearing clothes that made them look more l