Coldplay has denied allegations of Copyright Infringement and has released this statement:
"With the greatest possible respect to Joe Satriani, we have now unfortunately found it necessary to respond publicly to his allegations. If there are any similarities between our two pieces of music, they are entirely coincidental, and just as surprising to us as to him. Joe Satriani is a great musician, but he did not write or have any influence on the song Viva La Vida. We respectfully ask him to accept our assurances of this and wish him well with all future endeavors."
Similarities I have found between the two songs are;
- the lead guitar about 49 seconds into If I Could Fly sounds very similar to the vocals in the verse of Viva La Vida.
- The tone of the songs a very similar due to chords and and rhythm.