emi: experiments in musical intelligence one man’s dream to create new works from the composers...
TRANSCRIPT
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EMI: Experiments
in Musical IntelligenceOne man’s dream to create new works from the composers who are
decomposing
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What is EMI?
• Written by David Cope
• Originally a fix for “composer’s block”
• Became a tool for composing entire works
• Writes works that emulate styles of various composers
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Central Challenges
• Creating a grammar that holds all of the basic rules for coherent music
• Using previous works to bring life into the music
• Passing off new works as written by the “original” composer
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Music as seen by EMI
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Implementation of EMI
• Parses existing musical examples into a complex catalog of lexicons
• Augmented Transition Networks provide a way of linking lexicons of words into meaningful musical sentences
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SPEAC Identifiers
• Statement - declaration of material
• Preparation - introductory gesture
• Extension - continuance of material or ideas
• Antecedent - active function
• Consequent – conclusive, paired with antecedent
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SPEAC Analysis of Bach Chorale
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Nested Musical Phrases
• Musical phrase analysis on multiple levels
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Extracting the Essence
• Finding a composer’s signature and using it in the new works
• Two Mozart piano sonata excerpts:
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Success of EMI
• Styles are always recognizable
• “EMI’s Mozart is better than 99 percent of non-Mozart classical music.” - Cope
• Performers can often feel the depth, richness, and emotion in EMI’s works
• Tested before experts at Eastman
• Live performance of Mozart’s 42nd
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The End – Any Questions?