Transcript Powerpoint - Monash University

Functional Music (I)
Amanda Crawford
< [email protected] >
Hons. Comp.Sci
Monash University, Australia.
Supervisors: Lloyd Allison, Jon McCormack
Overview
• Background
information
• Implementation
• Results
• Musical terms
• Conclusions
• Project aims
• Future work
• Design
• Further information
• Acknowledgements
Background information
Musical terms
• Tempo
• Time signature
• Bar
Musical terms (cont…)
• Key
• Chord progression
• Chord
• Arpeggio
Project aims
• Analyse MIDI files for time signature(s),
tempo, instruments
• Break the MIDI file into bars
• Create new music
– chord progressions and melody
– use guitar chords
Design methods (I)
• Statistical analysis
– extract time signature, calculate bars
– calculate running time of file
– calculate tempo (beats per min), key,
instruments.
Design methods (II)
• Generating new music
– random key
– select chords according to programmed
harmonic rules
– generate melody from arpeggio of each
chord
Implementation
• Functional programming paradigm
• Haskell
• Haskore Computer Music System
– modules and functions
• extracting tempo(s), time signature(s)
• making new music: programming music theory
• guitar chords
Example of Haskore
Results (I)
• Analysis
– MIDI files on Internet: blues music
– artists included:
– example: 12 Bar blues
• Key: E major, Tempo: 85bpm, Length: 76
bars
Example of output
Results (II)
• Play some sound samples
– 12 Bar blues in E major
– some new music
• very first file
• some examples of chord and melody
• multiple instruments
Conclusions
• Blues music varies in key, tempo
• Music theory so new music sounds “pleasant”
• MIDI files - low sound quality
• Haskore code hard to learn, initial progress
slow
• Arpeggios – good way of creating harmony
over chords
Future work
• Make the code more efficient
• Account for more than one time signature
(statistical analysis)
• Improve the generation of new music
– coded music theory about key
– add more guitar chords
Further information
• Email: [email protected]
• Web:
http://www.csse.monash.edu.au/~amandac/honours/
Acknowledgements
• My supervisors – Lloyd and Jon
• Simon McNeilly
• Fellow Honours students
• Family
• Friends
• Musician friends – Brett, Andrew
The End
Questions?