I was thinking about how joe satriani is suing coldplay over similarities between Viva La Vida and If I could fly and i arrived at this question...unless another artists song is a complete rip of someone else's work (and i mean complete, like if i took Stairway To Heaven and changed a few lyrics), can you really sue for similarities? i always hear and believe that nothing in music is really new, just the way that it is presented changes. If someone was to copyright a particular set of notes, or a phrase, or a chord progression and no one else could use the bit without permission, wouldn't music as a whole die? what do you guys think?
p.s. extreme respect goes out to both joe satriani and coldplay (but more to satch )