To re-mix a song:Either a very brilliant artist or else a producer,takes certain beats,bass lines,vocals and other sound elements of an original recording and arranges them in different manner. Like more studio echo,over-repeated words and phrases,dance beat filler and many other tricks. It can also simply mean adding a little more when you feel your 1st version isn't good enough yet. I hope that tells you something. Later!
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Borderstone (An,"Avid Listner" of G.L.)