Did Coldplay copy Joe Satriani?

Make of it what you will. However, for those who are unaware, the tempo and keys HAVE been edited. I would never intend to trick anyone into believing that the two songs were IDENTICAL in these aspects. But think before suggesting that this makes the situation any different. Key and tempo are controllable variables, where as the main key to this argument is harmonically and melodically based. Key and tempo should be irrelevent in this respect. I.G.S.L.N Full Remix of the two songs is at http://youtube.com/watch?v=w3kytzHrKpo