Universidade de Brasília A Brazilian Popular Music Digital Library Oriented to Musical Harmony...

Universidade de Brasília

A Brazilian Popular Music Digital Library

Oriented to Musical Harmony e-Learning

A Brazilian Popular Music Digital Library Oriented to Musical

Harmony e-Learning

Fernando William Cruz (UnB/UCB) et alFernando William Cruz (UnB/UCB) et [email protected]@ucb.br

ISMIR2004 Barcelona, Spain


ISMIR 2004, Barcelona (Spain) -ISMIR 2004, Barcelona (Spain) -




Introduction System General Overview Focus on …

• E- learning• MIR Strategy• Standard Musical Format• Elements to storing• Single Musical Style

Our Music Digital Library Conclusion

SummarySummary

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IntroductionIntroductionConcerns:Concerns:

Formal Music education usually is concerned with classical music How to preserve Brazilian popular music harmony culture?

The question being addressed:The question being addressed: Why not also use Brazilian popular music in formal education?

Positive aspect: Positive aspect: We have a large variety of styles in popular music to choose from

• (choro, bossa nova, samba, …)

Negative aspect:Negative aspect: There are large gaps in the availability of good educational material that focus on Brazilian popular music

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IntroductionIntroductionOur proposal:Our proposal:

“to design a digital library framework able to provide appropriate support to those interested in the Brazilian music culture by means of a meaningful set of musical pieces and its educational use.”

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System General OverviewSystem General OverviewComponentsComponents::

Hypermedia Document Music Intelligent Tutoring System (ITS) Music Digital Library

Hypermedia Document

ITS

Music Digital Library

Guided Navigation Library as ITS knowledge base

Free Navigation Library as learner information base

Hypermedia Document

ITS




Harmony Tree TheoryHarmony Tree Theory

Based on daily experiences on teaching Brazilian Popular Music

Has been used with success to explain the harmonic structures within tonal music

It has been used both in musical education and analysis

Based on probabilistic occurrences of notes

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E-learning ApplicationsE-learning ApplicationsITS – Music Intelligent Tutoring SystemITS – Music Intelligent Tutoring System

Centered on a multiagent-based approach Permits guided navigation on Music Digital Library Uses MDL as a knowledgement database for build exercises and examples

Hypermedia Document

ITS




Hypermedia Document

ITS




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II

MIR Strategy - MIR Strategy - Harmony Trees TheoryHarmony Trees Theory (basic) (basic)

V7/IV

V7

IV

IImV7/II

V7/VI Relative

Modulations

VIm

VIb

III

IIIm Minor third

Major third

IVV7/IV Major fourth

IIIbV7/IIIb Flat third

V7/VIb Major sixth

ImV7/I Homonime

VV7/V Major fifth

V /III77

III Relative

V

Vm Minor fifth

Major fifth

Modulations

V7/IV

Im V7

IVm

I

V7/III

V7/V

V7/I Homonime

Im

-C-A7-Dm-G7-C-C-C7-F-G7-C-C-G7-C

C-G7-C-A7-Dm-G7-C-E7-Am-G7-C

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<?xml version="1.0" encoding="UTF-8" standalone="no"?><!DOCTYPE score-partwise PUBLIC "-//Recordare//DTD MusicXML 0.8 Partwise//EN" "http://www.musicxml.org/dtds/partwise.dtd"><score-partwise> <part-list> <score-part id="P1"> <part-name>Music</part-name> </score-part> </part-list> <part id="P1"> <measure number="1"> <attributes> <divisions>1</divisions> <key> <fifths>0</fifths> </key> <time> <beats>4</beats> <beat-type>4</beat-type> </time> <clef> <sign>G</sign> <line>2</line> </clef> </attributes> <note> <pitch> <step>C</step> <octave>4</octave> </pitch> <duration>4</duration> <type>whole</type> </note> </measure> </part></score-partwise>

<?xml version="1.0" encoding="UTF-8" standalone="no"?><!DOCTYPE score-partwise PUBLIC "-//Recordare//DTD MusicXML 0.8 Partwise//EN" "http://www.musicxml.org/dtds/partwise.dtd"><score-partwise> <part-list> <score-part id="P1"> <part-name>Music</part-name> </score-part> </part-list> <part id="P1"> <measure number="1"> <attributes> <divisions>1</divisions> <key> <fifths>0</fifths> </key> <time> <beats>4</beats> <beat-type>4</beat-type> </time> <clef> <sign>G</sign> <line>2</line> </clef> </attributes> <note> <pitch> <step>C</step> <octave>4</octave> </pitch> <duration>4</duration> <type>whole</type> </note> </measure> </part></score-partwise>

MusicXML

“Interchanging of data”

MusicXML “Hello World”

Standard Musical FormatStandard Musical Format

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Elements to StoringElements to Storing Melody line Bass line Associated harmony

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MIDI MIDI versionversion

<?xml version="1.0" standalone="no"?><!DOCTYPE score-partwise PUBLIC …><score-partwise> <movement-title>Flor Amorosa</movement-title> <identification> <creator type="composer">Joaquim Antônio da Silva Calado</creator> <encoding> <software>Finale 2004 for Windows</software> <encoding-date>2004-03-27</encoding-date> </encoding> </identification> <part-list> <part-group type="start" number="1"> <group-symbol>bracket</group-symbol> </part-group> <score-part id="P1"> <part-name>Melodia</part-name> <score-instrument id="P1-I1"> <instrument-name>Flute</instrument-name> </score-instrument> <midi-instrument id="P1-I1"> <midi-channel>1</midi-channel> <midi-program>74</midi-program> </midi-instrument> </score-part> <score-part id="P2"> <part-name>Violão</part-name> <score-instrument id="P2-I2"> <instrument-name>Acoustic Guitar (steel)</instrument-name> </score-instrument> <midi-instrument id="P2-I2"> <midi-channel>2</midi-channel> <midi-program>26</midi-program> </midi-instrument> </score-part> <part-group type="stop" number="1"/>…


Live version (2001)Live version (2001)

The The First Choro (1875):First Choro (1875):

MMusical usical SStyletyle ( (ChoroChoro))

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MIDI MIDI vversionersion



Live version (2001)Live version (2001)

The The First First ChoroChoro (1875): (1875):

MMusical usical SStyletyle ( (ChoroChoro))

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Noites Cariocas (Noites Cariocas (Jacob do BandolimJacob do Bandolim))

Version 1 (Noites Cariocas, Version 1 (Noites Cariocas, variousvarious, 2001), 2001)

Other Other ChorosChoros

Version 2 (Retocando o Choro, Version 2 (Retocando o Choro, ArmandinhoArmandinho, 2004), 2004)

Santa Morena (Santa Morena (Jacob do BandolimJacob do Bandolim))

Version 1 (sempre Jacob, Version 1 (sempre Jacob, variousvarious, 1997), 1997)



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Other Other ChorosChoros

Noites Cariocas (Noites Cariocas (Jacob do BandolimJacob do Bandolim))

Version 1 (Noites Cariocas, Version 1 (Noites Cariocas, variousvarious, 2001), 2001)


Santa Morena (Santa Morena (Jacob do BandolimJacob do Bandolim))




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Our Music Digital LibraryOur Music Digital Library

<?xml version="1.0" standalone="no"?>

<!DOCTYPE score-partwise PUBLIC …>

<score-partwise>

<movement-title>Flor Amorosa</movement-title>

...

<measure number="5">

<note>

<pitch>

<step>G</step>

<octave>5</octave>

</pitch>

<duration>4</duration>

<tie type="start"/>

<voice>1</voice>

<type>quarter</type>

<stem>down</stem>

<notations>

<tied type="start"/>

</notations>

</note>

. . .

...

<?xml version="1.0" standalone="no"?>

<!DOCTYPE score-partwise PUBLIC …>

<score-partwise>

<movement-title>Flor Amorosa</movement-title>

...

<measure number="5">

<note>

<pitch>

<step>G</step>

<octave>5</octave>

</pitch>

<duration>4</duration>

<tie type="start"/>

<voice>1</voice>

<type>quarter</type>

<stem>down</stem>

<notations>

<tied type="start"/>

</notations>

</note>

. . .

...

C-C7-F C#-C#7-F#

D-D7-G…

Query: I-V7/IV-IV

(1875)

Harmonic rules

MusicXML

Greenstone Software

•Score Rendering•Pattern Analyzer•MIDI Music sequencing

PluginMusicXML

PluginMusicXML

•Parser•VExPat Analyser

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ConclusionConclusionEfforts to dateEfforts to date

We are selecting fifty of the most important Choros and converting them into MusicXML Analysis about metadata that can be used We are building the bases for Pattern Analyzer Constructing a Musical Harmony e-learning course

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Thanks!Thanks!Gracias!Gracias!

Obrigado!Obrigado! [email protected]@ucb.br

Hypermedia Document

ITS




Hypermedia Document

ITS




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