[quote name='Bilbo' timestamp='1478951616' post='3172892']
I guess its the same as painting. Here is a picture of a face - can you do something with it that makes it fresh.
Chord sequences are only a part of the deal. The arrangement, timbres, vioces, melody, rhythm etc etc will all conspire to create a whole that is greater thatn the sum of it's parts. THAT is the Art of it. Being original is, in some ways, easier than sounding fresh using old material.
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Eloquently put.
The underlying chords are just a vehicle for the melody/riff/hook that makes a good song - at least they do in Western music. There are of course exceptions, but the majority of pop and rock songs will have some sort of chord sequence and usually familiar ones as they "work"