Title
Evaluating the General Chord Type Representation in Tonal Music and Organising GCT Chord Labels in Functional Chord Categories.
Abstract
The General Chord Type (GCT) representation is appropriate for encoding tone simultaneities in any harmonic context (such as tonal, modal, jazz, octatonic, atonal). The GCT allows the re-arrangement of the notes of a harmonic sonority such that abstract idiom-specific types of chords may be derived. This encoding is inspired by the standard roman numeral chord type labelling and is, therefore, ideal for hierarchic harmonic systems such as the tonal system and its many variations; at the same time, it adjusts to any other harmonic system such as post-tonal, atonal music, or traditional polyphonic systems. In this paper the descriptive potential of the GCT is assessed in the tonal idiom by comparing GCT harmonic labels with human expert annotations (Kostka u0026 Payne harmonic dataset). Additionally, novel methods for grouping and clustering chords, according to their GCT encoding and their functional role in chord sequences, are introduced. The results of both harmonic labelling and functional clustering indicate that the GCT representation constitutes a suitable scheme for representing effectively harmony in computational systems.
Year
Venue
Field
2015
ISMIR
Tonal system,Computer science,Harmonic,Speech recognition,Polyphony,Chord (music),Cluster analysis,Sonority hierarchy,Modal,Encoding (memory)
DocType
Citations 
PageRank 
Conference
3
0.41
References 
Authors
5
4