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Palestrina Pal

Palestrina Pal. a grammar checker for music compositions in the style of Palestrina. by Anna Cheng-Zhi Huang ( annapokga@hotmail.com , junior in CSCI-MUCO) (Faculty mentor Professor Chew). Motivation.

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Palestrina Pal

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  1. Palestrina Pal a grammar checker for music compositions in the style of Palestrina by Anna Cheng-Zhi Huang (annapokga@hotmail.com, junior in CSCI-MUCO) (Faculty mentor Professor Chew).

  2. Motivation • Make composers more aware of their Palestrina rule violations and to focus on higher level aesthetic issues.  • Extend creative technologies to CAC to improve musical communication. Palestrina Pal

  3. Objective • a JAVA application • OOP and GUIDO • checks for rule violations in compositions in the style of Palestrina. • automatically recognizes and highlights errors in a GUI Palestrina Pal

  4. 16th century counterpoint • the art of combining two or more melodic lines which are independent yet coordinate in feeling. • foundation for western music in following centuries. • Italian Palestrina (1525 – 1594) brought this style of music to its peak. Palestrina Pal

  5. Why are these “tedious” rules necessary? • based on “The Craft of Modal Counterpoint” by Thomas Benjamin. • a grammar to define meanings, in music. • harmonic, melodic and rhythmic rules Palestrina Pal

  6. Input, output • What is GUIDO? (example shown) • Input: • GUIDO text file • piano keyboard • Output: • GUIDO text file • MIDI Palestrina Pal

  7. Composition rules implemented. • harmonic: • parallelism, treatment of dissonance, etc • melodic: • leap intervals compensation, etc • rhythmic: • choice of note values and placements, etc. Palestrina Pal

  8. Harmonic rules: • Perfect parallelism • avoid parallel fifths, octaves and unisons. • Direct/Contrary parallelism • avoid fifths and octaves approached by leaps in the same direction or by contrary motion. Palestrina Pal

  9. (Dissonance treatments) • Passing Tone • a half note or quarter note dissonance on the weak beat approached and resolved by step and in the same direction. • Neighbor Note • a quarter or eighth note dissonance on the weak part of a beat approached and resolved in opposite directions. Palestrina Pal

  10. Continued Harmonic rules • Suspension • this idiom involves a consonant preparation, dissonance (a half note) on the same pitch on a strong beat, and resolution down by step to a consonance. • Anticipation (consonant or dissonant) • a quarter note on the weak part of any beat that anticipates the pitch of the coming consonant vertical interval. Palestrina Pal

  11. Melodic rules: • Range • soprano, alto, tenor and bass voices must operate within well-specified ranges. • Melodic leaps • use only m2, M2, m3, M3, P4, P5, m6(ascending only), and P8(rare). • Uncompensated leaps • melodic leaps are to be compensated (approached and left in opposite direction as leap). Palestrina Pal

  12. Rhythmic rules: • Note values • Basic note values are limited to double whole notes to eighth notes. • Dotted note values • Any values other than the quarter and eighth notes may be dotted. • Dotted note Positions • Dotted whole notes may begin only on beats 1 or 3, and dotted half notes must start on the beginning of a beat. Palestrina Pal

  13. Example • Use Finale music notation software to input notes. • Use GUIDO plugin to convert the Finale file. • Enable the rules wanted and run Palestrina Pal software • Error display and detection explained. • Correct wrong notes by modifying the GUIDO code or by keyboard interface. • Save composition as MIDI, and play. Palestrina Pal

  14. Manual analysis Palestrina Pal

  15. GUI with all the stops. Palestrina Pal

  16. Sicut Cervus by Palestrina Palestrina Pal

  17. Sicut Cervus: Result Palestrina Pal

  18. Source code design • classes resemble real life music composition objects. • evaluation procedure mimics how composers actually proofread work. Palestrina Pal

  19. Applications of Palestrina Pal • proofread compositions, not just Palestrina style • identify and analyze characteristics of C16th counterpoint. • evaluate computer-generated counterpoint in CAC. • music education, counterpoint theory Palestrina Pal

  20. Relevant Work Being Conducted • first system for automated evaluation of Palestrina style compositions. • potential for practical use in the music classroom. • Farbood and Schoener [2] focus on synthesis of Palestrina style compositions using Markov models. Palestrina Pal

  21. Future Goals • improve the user interface: piano roll to show imitations. • Conduct user studies • incorporate secondary level rules and suggestions for corrections Palestrina Pal

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