Music and technology always go together. Without paper, there is no fugue or counterpoint.
Acoustic instruments are the result of several centuries of innovations. Electronic synthesisers
have enriched music with- a wide range of novel sounds. Without digital technology, popular
music in the twenty-first century is unthinkable.
At Sony CSL, we imagine the technology for the music of the next decade. Our researchers
work with musicians and content providers to push the boundaries of creativity and understand
the complexity of modern music production processes. By combining cutting-edge A.I. research
with a strong musical expertise, we develop the artificial intelligence that will extend the scope of
the musician’s capabilities. We pave the way for musical experiences yet to imagine.
We introduce a model for music generation where
melodies are seen as a network of interacting
notes. Starting from the principle of maximum
entropy we assign to this network a probability
distribution, which is learned from an existing
musical corpus. We use this model to generate novel
musical sequences that mimic the style of the
corpus. Our main result is that this model can
reproduce high-order patterns despite having a
polynomial sample complexity. This is in contrast
with the more traditionally used Markov models that
have an exponential sample complexity.