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Scope
• The first chord contains an Eb, Bb, Eb, and G – an Eb major triad. Since this is I in Eb major, we are most likely in that key.
Scope
http://motools.sourceforge.net/chord_draft_1/chord.html#symbolservice
Terms and Definitions:
• Tone: A temporal part of a sound that occurs in some temporal interval such that frequency remains within a restricted range throughout the temporal interval.• Pitch: The characteristic (BFO: ‘process profile’) of a tone determined
by its frequency restriction.•Melody: A sequence of continuous or discontinuous temporal
intervals each of which contains a tone.• HarmonyEvent: A temporal interval in which tones occur such that
more than one pitch is instantiated.
Structural Process Profiles
• Modeled on Structuralist theories in Philosophy of Math• Elucidation: (subject to revision)
a structural_process_profile_of b iff: a process_profile_of b, & a has disjoint proper parts all of which are mutually s-dependent & for all proper parts x, x’ of a there is some relation R (R ≠ s-
dependence) such that xRx’, & for all relations R (R ≠ s- dependence) such that xRx’, there are some parts y, y’ of b such that yRy’.
Future Development:
• Related ontologies: MusicOntology, IAO, physics
• Fine tune approach: We haven’t solved all of the problems. Can we get necessary and sufficient conditions? Further conceptual analysis is required.
• Extensions: Traditional Western theory, contemporary theory, other systems of music.