Great lesson from Italian guitarist Daniele Tornaghi upon "Immigrant Song" by Led Zeppellin from their third studio album, Led Zeppelin III, released in 1970. It's one of most recorded Zeppelin's songs. It was used to open Led Zeppelin concerts in 1970s, was also performd by Jeff Beck and Jimmy Page during 2009 Rock and Roll Hall of Fame induction ceremony.
In video " Immigrant Song" taught by Daniele Tornaghi, a member of Italian rock band Ananke.
His official site is http://www.danieletornaghi.com