Stormcock

"Stormcock" is the fifth album by English folk / rock singer-songwriter and guitarist Roy Harper. It was first released in 1971 by Harvest Records and is widely considered to be his "best record".
The album contains four extended songs which showcase Harper's talents, both as songwriter and guitarist. But, perhaps most significantly, Stormcock "...epitomized a hybrid genre that had no exclusive purveyors save Harper — epic progressive acoustic.". The album features Jimmy Page on guitar, though upon the album's release, Page was credited as "S. Flavius Mercurius" for contractual reasons.
35 years after its release (2006) fellow Mancunian Johnny Marr of English alternative rock band The Smiths said:  " If ever there was a secret weapon of a record it would be Stormcock. I don’t know why it’s such a secret. If anyone thinks it might be a collection of lovely songs by some twee old folkie then they’d be mistaken. It's intense and beautiful and clever: [Bowie's] Hunky Dory's big, badder brother.
In October 2013 NME placed Stormcock at 377 in their list of "The 500 Greatest Albums Of All Time"