1. Chord Recognition with Application in Melodic Similarity
by Adam Tee, David Cooper and Des McLernon
Erdem Unal Spring 2003

2. Outline Introduction Chord Recognition Harmonic Analysis
Application to Musical Sequence Comparison

3. Chord Recognition http://guitaralliance.com/chord_phrasing.htm
The Algorithm
Surface Segmentation
Chord Identification
Chord Merging

4. Chord Recognition Continued …
Recognition is performed with template data base search
Path recognition of distances between notes
- Example Cmaj 7th 4-3-4

5. Chord Recognition Continued …
Two rules of chord merging
Equal roots
Bass note carries over

6. Harmonic Analysis Roman numerical analysis of all chords
Preferences imposed
For example:

7. Application to Musical Comparison
Similarity on musical sequences
Features defined:
Absolute Pitch
Absolute Duration
Pitch Contour
Duration Contour
Metric position
Tonality
Harmony

8. Conclusion
Future Work
Questions???