I read recently that Led Zeppelin are facing a jury trial this month over a copyright infringement. The question is whether they stole the opening chords for their 1971 song ‘Stairway to Heaven’ from the 1968 instrumental ‘Taurus’ by the band Spirit. Whether or not to sue would seem to be arbitrary and may be as much to do with the circumstances of the plaintiff as to the strength of case. Earlier this year, Sam Smith settled a copyright dispute with Tom Petty over the likeness between ‘Stay With Me’ and Petty’s song ‘I Won’t Back Down’. Whereas Petty certainly gave the Strokes a pass for ‘Last Nite’ and its remarkably similarities to his 1976 classic ‘American Girl’. Have a good week.