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Guerino Mazzola (Fall 2015 Guerino Mazzola (Fall 2015 © © ): Honors Seminar ): Honors Seminar IV.3 IV.3 Communication Communication IV.3.1 IV.3.1 (Fr Nov 06) (Fr Nov 06) MIDI MIDI
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IV.3 IV.3 CommunicationCommunication
IV.3.1 IV.3.1 (Fr Nov 06) (Fr Nov 06) MIDIMIDI
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ll
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ee
soundsoundeventsevents
scorescore
analysisanalysis
instrumental-instrumental-interfaceinterface
„„thaw“thaw“
instrumentalizeinstrumentalize
gesturesgestures
Standard MIDI fileStandard MIDI file
MIDI = MIDI = MMusicalusicalIInstrumentnstrumentDDigitaligitalIInterfacenterface
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111010010111001000100011101010000110....111010010111001000100011101010000110....
31‘250 Bits per second ~ 1 MegaBit/32 per second (5mA) ~ 32 31‘250 Bits per second ~ 1 MegaBit/32 per second (5mA) ~ 32 sec/Bitsec/Bit
(NAMM) National Association of Music Merchants convention 1983(NAMM) National Association of Music Merchants convention 1983
IN THRU OUTIN THRU OUT three port typesthree port types
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111010010111001000100011101010000110....111010010111001000100011101010000110....ExpressionExpression
SignificationSignification
ContentContent
MIDI Specification: MIDI Specification: http://www.midi.org
Message HierarchyMessage Hierarchy
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MIDI Message SyntaxMIDI Message Syntax
StatusbyteStatusbyte 1st Databyte1st Databyte 2nd Databyte2nd Databyte
Sta
stus
bit
Sta
stus
bit
Dat
abit
Dat
abit
Note-OnNote-OnMessageMessage
ChannelChannel(5)(5)
Note NumberNote Number(60)(60)
VelocityVelocity(61)(61) D
atab
itD
atab
it
10 Bit Words:10 Bit Words:320 320 sec/wordsec/word
Startbit = 0Startbit = 0 Stoptbit = 0Stoptbit = 0
What?What? Who?Who? How?How?
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MIDI Message HierarchyMIDI Message Hierarchy
single musicianssingle musicians all musiciansall musicians the entire systemthe entire system
SystemSystem
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MIDI Channel VoiceMIDI Channel Voice
Statusbyte Databyte Message Description
StatusbyteStatusbyte 1st Databyte1st Databyte 2nd Databyte2nd Databyte
Sta
stus
bit
Sta
stus
bit
Dat
abit
Dat
abit
Note-OnNote-OnMessageMessage
ChannelChannel(5)(5)
Note NumberNote Number(60)(60)
VelocityVelocity(61)(61) D
atab
itD
atab
it
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Standard MIDI FileStandard MIDI File
............................
Off of first note Off of first note and On of second noteand On of second note
Delta Time in Ticks = 480 per quarter noteDelta Time in Ticks = 480 per quarter note
StatusbyteStatusbyte 1st Databyte1st Databyte 2nd Databyte2nd Databyte
Sta
stus
bit
Sta
stus
bit
Dat
abit
Dat
abit
Note-OnNote-OnMessageMessage
ChannelChannel(5)(5)
Note NumberNote Number(60)(60)
VelocityVelocity(61)(61) D
atab
itD
atab
it
Gue
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![Time and Reversal in Birtwistle’s Punch and JudyMore recently, Guerino Mazzola [16, p. 44] describes inversion not as a reflection, but in terms of a gesture that is a 180 rotation](https://static.documents.pub/doc/80x56/613d91fcd6303f41db6eff19/time-and-reversal-in-birtwistleas-punch-and-judy-more-recently-guerino-mazzola.jpg)
