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From Midi to Traditional Musical Notation

From Midi to Traditional Musical Notation. by Emilios Cambouropoulos. Outline. Introduction The Algorithm Salience of Musical Objects Beat Induction Beat Tracking Time Quantization Onset Quantization Duration Quantization Pitch Spelling. Salience of Musical Objects.

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From Midi to Traditional Musical Notation

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  1. From Midi to Traditional Musical Notation by Emilios Cambouropoulos

  2. Outline • Introduction • The Algorithm • Salience of Musical Objects • Beat Induction • Beat Tracking • Time Quantization • Onset Quantization • Duration Quantization • Pitch Spelling

  3. Salience of Musical Objects • Elementary Musical Objects are identified • Chords, arpeggiated chords, trills, mordents • Synchronization 40ms< onset < 70ms

  4. Salience of Musical Objects contd… • Musical Accent • Beat Processing Application • More salient musical events have more influence over beat

  5. Beat Induction and Beat Tracking May shift because low accent notes appear in onsets. A: event onsetsB: accent of musical events Next beat = average of last three beats.-Disregard if salience is low

  6. Onset and Duration Quantization

  7. Pitch Spelling • Refer to Cambouropoulos, 2000 • Notational parsimony • Diatonic interval optimization • Tested in 3 complete Mozart sonatas (97% accuracy)

  8. Conclusion • The whole algorithm is tested in 13 complete Mozart sonatas • may add extra beats • may shift because of weak notes • module avoids rests and hardly depended on the streaming accuracy Overall : Encouraging Results !!!

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