During the ‘Stairway to Heaven’ trial other songs were mentioned that had a similar notes to “Stairway to Heaven” and the Spirit song “Taurus” you could almost argue that Taurus ripped off these songs too. Take a listen
The song in question:
Other songs that are similar.
https://youtu.be/qshlCSN8fIo?t=2m59s
https://www.youtube.com/watch?v=uWiL5XuJLQo
https://www.youtube.com/watch?v=UjuaZDdqmCw