Arvo PärtArvo Pärt Cantus in Memory of Benjamin BrittenCantus in Memory of Benjamin Britten String orchestra and bellString orchestra and bell Aeolian mode (no chromatics)Aeolian mode (no chromatics) Downward motionDownward motion Higher the fasterHigher the faster Begin high, end lowBegin high, end low Harmony as it willHarmony as it will

Algorithmic CompositionAlgorithmic Composition

Examples of algorithmsExamples of algorithms

DNADNA Breathing Breathing Heart beatingHeart beating Blinking Blinking RecipesRecipes Shopping listsShopping lists Daily calendarsDaily calendars

Definition of algorithmDefinition of algorithm

A step by step process for accomplishing a A step by step process for accomplishing a goal.goal.

Knowing what you are doing rather than Knowing what you are doing rather than relying on intuition or chancerelying on intuition or chance

Thinking through ideas Thinking through ideas Divide and conquerDivide and conquer Knowing your constraintsKnowing your constraints

Musical algorithmsMusical algorithms Music notationMusic notation Musical instrumentsMusical instruments Musical skills (scales, arpeggios, etc.)Musical skills (scales, arpeggios, etc.) SolfegeSolfege Tonal harmonyTonal harmony KeysKeys Chords and inversionsChords and inversions Chord functionsChord functions

Music composition algorithmsMusic composition algorithms

Isorhythm Isorhythm

Composition algorithmsComposition algorithms

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Figured bassFigured bass

Musikalisches WürfelspielMusikalisches Würfelspiel

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Mozart’s MWMozart’s MW

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Example Example

In javaIn java

Enter computersEnter computers

Brief history including synthesisBrief history including synthesis

Iannis XenakisIannis Xenakis

MetastasisMetastasis