Music of the Renaissance The birth of polyphony & the era of melancholy.
computational music - Maya Ackerman · In music, texture refers how individual "voices" stack up...
Transcript of computational music - Maya Ackerman · In music, texture refers how individual "voices" stack up...
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ComputationalMusic
2017-04-12KittyZhengshanShi
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?Howdoescomputer makemusic
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InterestingComputerMusicExamples
• IpadStringQuartet• Pipedreams• 8-bitmusic• Deep-learningbach
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?Howdoescomputer makemusic
human?
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What is sound? What is music?
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Sound is motion
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(Interesting) sound is motion
(over time)
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Static sounds,no matter how complex,
are boring!
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Define some fundamental terms
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Audio Sampling
10CD:44.1kHz,16bit
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Frequency
Dynamics
Timbre
Texture
Rhythm
Harmony …
…
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Frequency (related: pitch)Measured in Hertz, frequency always has to do the number of oscillations
per unit time. If the frequency of oscillation is audible (less than about 20,000 Hertz), then we hear it as pitch, how “high” or “low” it sounds. Often easy for a computer to control!
Dynamics (related: volume / gain / loudness)This may seem so trivial (it's a single multiplier on the amplitude of the
sound) that it's all too easy to overlook and under-utilize in sound design. Be mindful of the relative loudness of different elements, as well as a trajectory of change in loudness (e.g., crescendo, decrescendo, tremolo), Subtle variations of amplitude may have pronounced effect over time! amplitude envelopes can be applied to create expressive contours as a function of time!
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Timbre (related: tone, frequency spectrum of sound)Hard to define but essential quality of sound -- We can think of timbre as the
instantaneous make-up of a sound. It can be controlled, and modulated in many ways, including adding sound components together, subtracting parts (through filtering), or modeling some physical or physically inspired aspects of sound. We can talk about the timbre of a cello vs. an electric guitar, for example.
Texture (related: interaction of "voices" in a mixture)In music, texture refers how individual "voices" stack up (e.g., monophony,
polyphony, counterpoint) and interact with each other to form a coherent overall sound. More broadly, texture might be thought of as how discernible sounds layer together in a mixture. Might describe the texture of a sound as "gritty", "smooth", "pointillistic", "thin", "full", ...
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Rhythm (related: pulse, beat, meter, tempo, arhythm)Any discernible REPETITION of arrival or change of sound. Can be as in-your-
face as a repeating kick drum, or as subtle as gentle fluctuations (or pulse or flutter) of a sound…
Harmony (related: consonance, dissonance, chords, motion)
The simultaneity of pitches, and how to progress, move from one state to another. The progression of harmonies (whether tonal, atonal etc.) over time can be a prominent musical parameter to change over time!
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Let’smakesomemusic!
Chuck!• http://chuck.cs.princeton.edu/• Strongly-timed,Concurrent,andOn-the-flymusicprogramminglanguage
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Randomness!
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Music Automata
Metronome, 1850Water organs, music boxes, musical clocks,
etc. -- predictable ways
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Music Automata
What about unpredictable automaton?
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The use of chance and randomness
18th: Mozart’s Musical Dice Game
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Randomness - newness, originality, incoherence
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Using Randomness - Between chaos and falling asleep
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Computer&Human
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LaptopOrchestra
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?Doescomputer understandmusic
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ChordRecognition
GMajorCminor ???
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SpectralAnalysis
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TimbreAnalysis
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Whatcanthecomputerdo?
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PageTurner!!
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ScoreFollowing
Dannenberg2003
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Computerandcreativity
Bringhumanintotheloop?
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Thanks!
KittyShi2017-04-12