GuitarPrometheus::MusicModels

Classes

	Name
struct	GuitarPrometheus::MusicModels::Duration A note’s engraved duration: the symbol (NoteValue), how many augmentation dots, and the tuplet ratio if any.
class	GuitarPrometheus::MusicModels::KeySignature A key signature in 12-tone equal temperament.
struct	GuitarPrometheus::MusicModels::TimeSignature Time signature as engraved (e.g., 4/4, 6/8, 7/16).

Types

	Name
enum	Mode { Ionian = 0, Dorian = 1, Phrygian = 2, Lydian = 3, Mixolydian = 4, Aeolian = 5, Locrian = 6, NUM_MODES = 7} The seven diatonic modes in order of their position in the major scale rotation.
enum	PitchClass { C = 0, D = 1, E = 2, F = 3, G = 4, A = 5, B = 6, NUM_PITCH_CLASSES = 7} The seven natural pitch classes.
enum class	Accidental { None = -99, DoubleFlat = -2, Flat = -1, Natural = 0, Sharp = 1, DoubleSharp = 2} Accidental applied to a pitch.
enum class	Dynamic { None = -1, Pianississimo, Pianissimo, Piano, MezzoPiano, MezzoForte, Forte, Fortissimo, Fortississimo, Sforzando, FortePiano} Dynamic marking controlling relative playback loudness.
enum	NoteValue { DoubleWhole = 0, Whole = 1, Half = 2, Quarter = 3, Eighth = 4, Sixteenth = 5, ThirtySecond = 6, SixtyFourth = 7, OneTwentyEighth = 8, NUM_NOTE_VALUES = 9} Engraved note duration symbol.

Functions

	Name
int	defaultVelocityFor(Dynamic d) Default MIDI velocity (0..127) for a dynamic marking.

Types Documentation

enum Mode

Enumerator	Value	Description
Ionian	0
Dorian	1
Phrygian	2
Lydian	3
Mixolydian	4
Aeolian	5
Locrian	6
NUM_MODES	7

The seven diatonic modes in order of their position in the major scale rotation.

Ionian is major; Aeolian is natural minor.

enum PitchClass

Enumerator	Value	Description
C	0
D	1
E	2
F	3
G	4
A	5
B	6
NUM_PITCH_CLASSES	7

The seven natural pitch classes.

Ordered C..B (musical, not alphabetical) so MIDI-number arithmetic in Engraving::getMidiNoteNumber reads naturally.

enum Accidental

Enumerator	Value	Description
None	-99
DoubleFlat	-2
Flat	-1
Natural	0
Sharp	1
DoubleSharp	2

Accidental applied to a pitch.

None is a sentinel meaning “inherit from the active key signature” — used on Engraving notes whose XML omits an explicit <alter>. Values for the real accidentals are the semitone delta from natural.

enum class here (rather than plain enum) because the values are signed and non-contiguous; the count-trick used by the other enums in this file does not work, and type-safety matters more.

enum Dynamic

Enumerator	Value	Description
None	-1
Pianississimo
Pianissimo
Piano
MezzoPiano
MezzoForte
Forte
Fortissimo
Fortississimo
Sforzando
FortePiano

Dynamic marking controlling relative playback loudness.

None is a sentinel meaning “no change at this point; inherit the prior effective dynamic”. Maps to MIDI velocity via defaultVelocityFor (overridable per-VST-profile in Phase 4).

enum NoteValue

Enumerator	Value	Description
DoubleWhole	0
Whole	1
Half	2
Quarter	3
Eighth	4
Sixteenth	5
ThirtySecond	6
SixtyFourth	7
OneTwentyEighth	8
NUM_NOTE_VALUES	9

Engraved note duration symbol.

Maps to MusicXML’s <type> element. Combined with dot count and tuplet ratio in [Duration](/api-reference/classes/structguitarprometheus_1_1musicmodels_1_1duration/) to compute actual ticks.

Functions Documentation

function defaultVelocityFor

int defaultVelocityFor(
    Dynamic d
)

Default MIDI velocity (0..127) for a dynamic marking.

Users can override via the VST-profile velocity map in Phase 4; this function is the bundled default. Dynamic::None returns the MezzoForte value (64).

Updated on 2026-05-29 at 07:39:52 +0000