Andrea Poltronieri Jacopo De Bernardinis Nicolas Lazzari The Music Projection Ontology allows the formalisation of the musical entities that can be subject of an annotations. This ranges from traditional musical notation (e.g. note, chords) to informal annotations (e.g. mood, danceability). 26/07/2023 28/07/2023 Music Projection Ontology mp: The Music Projection Ontology allows the formalisation of the musical entities that can be subject of an annotations. This ranges from traditional musical notation (e.g. note, chords) to informal annotations (e.g. mood, danceability). Polifonia Ontology Network Music Projection Ontology 1.0 A diatonic step is an absolute step with respect to the reference note, i.e. a fifth. Diatonic step Relation between a pitch class and an accidental. has accidental The relation between an ambitus and the type it is classified as. has ambitus type The relationship between a cadence and a type it is classified as. has cadence type Relation between a note and its duration. has duration The relation between a mode and a type it is classified as. has mode type Relation between a note and its pitch. has pitch The relation between a pitch and the pitch class represented. has pitch class Relation between an interval and its quality. has quality The value of an interval is the amount of pitch classes it encompasses. has specific interval value The reference pitch class of an interval, from which a different pitch class can be obtained by shifting by the adequate number of pitch classes. has starting pitch class Relation between an accidental and a pitch class. is accidental of The relationship between an ambitus type and an ambitus it classifies. is ambitus type of The relationship between a cadence type and a cadence it classifies. is cadence type of Defines the relationship between a chord and the pitch class or pitch it is composed of. is composed of Relation between a duration and a note it is used in. is duration of The relationship between a mode type and a mode it classifies. is mode type of Relation between a pitch class and the pitches it is instiatied as. is pitch class of Relation between a pitch and the note it is used in. is pitch of Relation between a quality and an interval. is quality of The amount of pitch classes ranged by an interval. is specific interval value of The interval a PC is reference of. is starting pitch class of Relates a chord to its inversion. https://en.wikipedia.org/wiki/Inversion_(music) has inversion Defines the octave of a PC or of a pitch. has octave Defines the staff line of a clef. is on staff line Number of diatonic steps spanned by an enharmonic interval. spans over An accidental is a symbol used to indicate that a pitch class should be raised or lowered. Accidental The range of a melody in Gregorian chant. ambitus. In Latham, A. (Ed.), The Oxford Companion to Music. : Oxford University Press. Retrieved 28 Jul. 2023, from https://www.oxfordreference.com/view/10.1093/acref/9780199579037.001.0001/acref-9780199579037-e-235. Ambitus The type that classifies an ambitus. Ambitus type A melodic or harmonic motion conventionally associated with the ending of a phrase, section, movement, or composition. Nagley, J., & Whittall, A. cadence. In The Oxford Companion to Music. : Oxford University Press. Retrieved 28 Jul. 2023, from https://www.oxfordreference.com/view/10.1093/acref/9780199579037.001.0001/acref-9780199579037-e-1072. Cadence The type that classifies a cadence. Cadence type A chord is a vertical set of notes played at the same time. Chord A clef is used to indicate which notes are represented on each line and space of a musical staff. Clef https://en.wikipedia.org/wiki/Clef A duration is the amount of time that a music projection lasts. Duration https://en.wikipedia.org/wiki/Duration_(music) 1 An enharmonic interval (EIV) is the difference between two EPCs E.g. 5 semitones Hentschel, J., Moss, F. C., McLeod, A., Neuwirth, M., & Rohrmeier, M. (2022). Towards a unified model of chords in western harmony. Enharmonic interval EIV An enharmonic pitch class (EPC) is a numeric value from 1 to 12. It represents an absoute value for a pitch class. It is not possible to identify modfiers, becuase of the existance of enharmonic pitches. E.g. 9 Hentschel, J., Moss, F. C., McLeod, A., Neuwirth, M., & Rohrmeier, M. (2022). Towards a unified model of chords in western harmony. Enharmonic pitch class EPC A flat accidental is an accidental that lowers a pitch. Flat accidental https://en.wikipedia.org/wiki/Flat_(music) A generic interval (GIV) is the difference between two GPCs E.g. a 3rd Hentschel, J., Moss, F. C., McLeod, A., Neuwirth, M., & Rohrmeier, M. (2022). Towards a unified model of chords in western harmony. Generic interval GIV A generic pitch class (GPC) is a symbol from A to G that representes a generically a pitch class, without taking into account modifiers and octaves. E.g. C Hentschel, J., Moss, F. C., McLeod, A., Neuwirth, M., & Rohrmeier, M. (2022). Towards a unified model of chords in western harmony. Generic pitch class GPC A generic scale degree (GSD) is a number from 1 to 7 that defines a one-to-one mapping from a GPC to a SIV. E.g. 3 Hentschel, J., Moss, F. C., McLeod, A., Neuwirth, M., & Rohrmeier, M. (2022). Towards a unified model of chords in western harmony. Generic scale degree GSD 1 1 The quality of an interval. Interval quality https://en.wikipedia.org/wiki/Interval_(music)#Quality A key is the combination of a mode and a tonic PC, Hentschel, J., Moss, F. C., McLeod, A., Neuwirth, M., & Rohrmeier, M. (2022). Towards a unified model of chords in western harmony. Key In early medieval theory the word modus was occasionally used to mean ‘interval’—for example by Hucbald of Saint-Amand (c.840–930) and Guido of Arezzo (c.991–after 1033). This meaning survived in Ornithoparcus's Musicae activae micrologus (Leipzig, 1517) and was retained in John Dowland's translation of that work, Of Moodes, or Intervals (London, 1609). It is last found in the writings of J. H. Buttstedt (1666–1727). There [...] other meanings better known today [...] that of ‘scale’ or ‘melody type’ [...]. [...] [It] covers a wide range of definition, from simple scales—arrangements of tones and semitones sometimes without any implication of a ‘tonic’ or main note—to a particular and typical melodic style or collection of motifs, perhaps with a definite ‘tonic’ and other notes in a hierarchy of importance—a meaning often found in discussions of non-European music, where melody types are widely used in non-written musical traditions [...]. Hiley, D. mode. In The Oxford Companion to Music. : Oxford University Press. Retrieved 28 Jul. 2023, from https://www.oxfordreference.com/view/10.1093/acref/9780199579037.001.0001/acref-9780199579037-e-4468. Mode The type that classifies a mode. Mode type 1 A note is a pitch that is played for a specified duration. Note https://en.wikipedia.org/wiki/Musical_note 1 1 1 A sharp accidental is an accidental that changes a pitch in an higher one. Sharp accidental https://en.wikipedia.org/wiki/Sharp_(music) 1 A specific interval (SIV) is the difference between two SPCs E.g. a majord 3rd Hentschel, J., Moss, F. C., McLeod, A., Neuwirth, M., & Rohrmeier, M. (2022). Towards a unified model of chords in western harmony. Specific interval SIV A specific scale degree (SSD) is a number from 1 to 7 plus an accidental that defines a one-to-one mapping from a GPC to a SIV. E.g. b3 Hentschel, J., Moss, F. C., McLeod, A., Neuwirth, M., & Rohrmeier, M. (2022). Towards a unified model of chords in western harmony. Specific scale degree SSD A spelled pitch class (SPC) is a GPC plus an accidental. E.g. C# Hentschel, J., Moss, F. C., McLeod, A., Neuwirth, M., & Rohrmeier, M. (2022). Towards a unified model of chords in western harmony. Spelled pitch class SPC A Aeolian mode An augmented interval can further qualify each major interval and fourths and fifths as well. Augmented interval B Si Double whole note. Breve C D A diminished interval can further qualify each major interval and fourths and fifths as well. Diminished interval Dorian mode Two flats. Double flat Two sharps. Double sharp E Eighth note. Eighth F One flat. Flat G 2 G clef, also known as a treble clef or a french violin clef. It is placed on the second line of a staff. French violin clef G clef Treble clef Half note. Half Ionian mode Quadruple whole note. Long Lydian mode A major interval can further qualify a second, third, sixts or sevenths. Major interval A minor interval can further qualify a second, third, sixts or sevenths. Minor interval Mixolydian mode A natural accidental is an accidental that cancels previous accidentals. Natural https://en.wikipedia.org/wiki/Natural_(music) A perfect interval qualifies a unisons, octaves, fourths and fifths. Perfect interval Phrygian mode Quarter note. Quarter One sharp. Sharp Sixteenth note. Sixteenth Three flats. Triple flat Three sharps. Triple sharp Whole note. Whole 1024th note. 1024th 128th note. 128th 2048th note. 2048th 256th note. 256th 32th note. 32th 512th note. 512th 64th note. 64th Interval An interval is a difference between two pitch classes. https://en.wikipedia.org/wiki/Interval_(music) A pitch is a perceptual property of a sound, related to a frequency. It is defined as the combination of a pitch class and an octave. https://en.wikipedia.org/wiki/Pitch_(music) Pitch Pitch class PC https://en.wikipedia.org/wiki/Pitch_class The set of alla pitches that are a whole number of octaves apart.