Walking in the air (youtube)
Royals - Lorde (youtube)
These two melodies start off the same. How similar can two tunes be whilst remaining distinct from each other?
They are harmonized differently, but it's common practice when you reharmonize something not to say that it's a new tune - you instead acknowledge that it's a reharm.
So are they different or not?
And can anyone supply a prior art? Has this tune been "written" before by someone else?