http://www.theguardian.com/music/2016/apr/12/stairway-to-heavens-opening-chords-may-have-been-stolen-judge-says
Led Zeppelin’s lead singer Robert Plant and guitarist Jimmy Page must face a US jury trial over whether they stole opening chords for their 1971 classic Stairway to Heaven.
Good analysis. i noticed the similarity long ago, but don’t think there is enough to justify this lawsuit. Jake Holmes, however, had a much better case when he sued Jimmy Page over Dazed and Confused in 2010, but I couldn’t find any judgment. Jake Holmes opened for the Yardbirds in 1967 when Jimmy Page was their guitarist.