What makes music beautiful? The best compositions transcend culture and 
time -- but what is the commonality which underscores their appeal? 
New research published in BioMed Central's open access journal BMC Research Notes
 suggests that the brain simplifies complex patterns, much in the same 
way that 'lossless' music compression formats reduce audio files, by 
removing redundant data and identifying patterns.
There is a long held theory that the subconscious mind can recognise 
patterns within complex data and that we are hardwired to find simple 
patterns pleasurable. Dr Nicholas Hudson used 'lossless' music 
compression programs to mimic the brain's ability to condense audio 
information. He compared the amount of compressibility of random noise 
to a wide range of music including classical, techno, rock, and pop, and
 found that, while random noise could only be compressed to 86% of its 
original file size, and techno, rock, and pop to about 60%, the 
apparently complex Beethoven's 3rd Symphony compressed to 40%.
Dr Nicholas Hudson says "Enduring musical masterpieces, despite 
apparent complexity, possess high compressibility" and that it is this 
compressibility that we respond to. So whether you are a die hard 
classicist or a pop diva it seems that we chose the music we prefer, not
 by simply listening to it, but by calculating its compressibility.
For a composer -- if you want immortality, write music which sounds 
complex but that, in terms of its data, is reducible to simple patterns.
The above story is reprinted from materials provided by BioMed Central, via EurekAlert!, a service of AAAS.

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