I am no music engineer or virtuoso but the song ‘Viva la Vida’ written and performed by Coldplay is no coincidence. The two songs are just too close in melody as proven by this video here.
Coldplay statement:
“With the greatest possible respect to Joe Satriani, we have now unfortunately found it necessary to respond publicly to [...]

A day after winning seven Grammy nominations, the members of Coldplay were served with a copyright infringement lawsuit Thursday that claims they ripped off guitarist Joe Satriani to write one of their biggest hits, “Viva La Vida.”

There’s no doubt that Coldplay ripped off Joe Satriani’s 2004 instrumental “If I Could Fly.” You be the judge [...]

Rock guitarist Joe Satriani has sued British band Coldplay, accusing the Grammy-nominated stars of plagiarizing one of his songs.
Satriani’s copyright infringement suit, filed on Thursday in Los Angeles federal court, claims the Coldplay song “Viva La Vida” incorporates “substantial original portions” of his 2004 instrumental “If I Could Fly.”
The 52-year-old guitar virtuoso is seeking a [...]

Public domain - I don’t think so!
When visiting a web site, it is so easy to right click and save as when you see a graphic image or photo that you like, or to view the source code and copy part of or all of the HTML coding because you like the look and layout.
The [...]