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#+ HeadMusic::Pitch
#+ HeadMusic::Register
#+ HeadMusic::PitchClass
#+ HeadMusic::Content::Position
#+ HeadMusic::ChromaticInterval
#- HeadMusic::Pitch
#- HeadMusic::Register
#- HeadMusic::PitchClass
#- HeadMusic::ChromaticInterval
#<=> HeadMusic::Sign
#<=> HeadMusic::Pitch
#<=> HeadMusic::Register
#<=> HeadMusic::PitchClass
#<=> HeadMusic::ScaleDegree
#<=> HeadMusic::Content::Position
#<=> HeadMusic::Content::Placement
#<=> HeadMusic::DiatonicInterval
#<=> HeadMusic::ChromaticInterval
#== HeadMusic::Clef
#== HeadMusic::Meter
#== HeadMusic::Pitch
#== HeadMusic::Quality
#== HeadMusic::Sonority
#== HeadMusic::Spelling
#== HeadMusic::PitchSet
#== HeadMusic::Consonance
#== HeadMusic::Instrument
#== HeadMusic::ScaleType
#== HeadMusic::LetterName
#== HeadMusic::PitchClass
#== HeadMusic::KeySignature
#== HeadMusic::PitchClassSet
#== HeadMusic::Content::RhythmicValue
_chromatic_scales HeadMusic::ScaleType
_degree_quality_modifications HeadMusic::DiatonicInterval::Semitones
_exotic_scales HeadMusic::ScaleType
_minor_scales HeadMusic::ScaleType
_modes HeadMusic::ScaleType
_pentatonic_scales HeadMusic::ScaleType
_semitones_for_degree HeadMusic::DiatonicInterval::Semitones
#abbreviation HeadMusic::Named::LocalizedName
#above HeadMusic::DiatonicInterval
#add_voice HeadMusic::Content::Composition
#adherent? HeadMusic::Style::Analysis
#adherent? HeadMusic::Style::Annotation
#alias_name_keys HeadMusic::Named
#alias_name_keys HeadMusic::Instrument
all HeadMusic::Sign
all HeadMusic::Instrument
all HeadMusic::LetterName
all HeadMusic::InstrumentFamily
analyze HeadMusic::Style::Guides::FuxCantusFirmus
analyze HeadMusic::Style::Guides::FirstSpeciesMelody
analyze HeadMusic::Style::Guides::ModernCantusFirmus
analyze HeadMusic::Style::Guides::FirstSpeciesHarmony
#annotations HeadMusic::Style::Analysis
#article HeadMusic::Quality
#ascending? HeadMusic::MelodicInterval
#ascending_intervals HeadMusic::ScaleType
#ascii HeadMusic::MusicalSymbol
#augmented_triad? HeadMusic::PitchSet
#bar_number HeadMusic::Content::Position
#bars HeadMusic::Content::Composition
#bass_pitch HeadMusic::PitchSet
#beat_strength HeadMusic::Meter
#beat_unit HeadMusic::Meter
#beats_per_bar HeadMusic::Meter
#below HeadMusic::DiatonicInterval
#black_key? HeadMusic::PitchClass
#bottom_number HeadMusic::Meter
#british_name HeadMusic::RhythmicUnit
by HeadMusic::Sign
#cantus_firmus? HeadMusic::Content::Voice
#cantus_firmus_voice HeadMusic::Content::Composition
#cents HeadMusic::Sign
#change_key_signature HeadMusic::Content::Composition
#change_meter HeadMusic::Content::Composition
#chromatic? HeadMusic::ScaleType
#classification_keys HeadMusic::Instrument
#classification_keys HeadMusic::InstrumentFamily
#clef HeadMusic::Staff
#clef_type HeadMusic::Clef
#code HeadMusic::Named::Locale
#code HeadMusic::Content::Position
#code HeadMusic::Style::Mark
common_time HeadMusic::Meter
#composition HeadMusic::Content::Bar
#composition HeadMusic::Content::Voice
#composition HeadMusic::Content::Position
#compound? HeadMusic::Meter
#compound? HeadMusic::DiatonicInterval::Size
#compound? HeadMusic::ChromaticInterval
concert_a HeadMusic::Pitch
#consonance HeadMusic::DiatonicInterval
#consonance? HeadMusic::DiatonicInterval
#consonant? HeadMusic::Sonority
#consonant_triad? HeadMusic::PitchSet
#contrapuntal_motion HeadMusic::Motion
#contrary? HeadMusic::Motion
#count HeadMusic::Content::Position
#count HeadMusic::DiatonicInterval::Semitones
#count_unit HeadMusic::Meter
#counterpoint_voice HeadMusic::Content::Composition
#counts_per_bar HeadMusic::Meter
cut_time HeadMusic::Meter
#decachord? HeadMusic::PitchClassSet
default HeadMusic::Meter
default HeadMusic::Register
default HeadMusic::ScaleType
default HeadMusic::KeySignature
#default_clef HeadMusic::Staff
#default_clefs HeadMusic::Instrument
default_locale HeadMusic::Named::Locale
#default_staves HeadMusic::Instrument
#degree HeadMusic::Scale
#degree HeadMusic::ScaleDegree
#degree_name HeadMusic::DiatonicInterval::Parser
degree_quality_semitones HeadMusic::DiatonicInterval::Semitones
#denominator HeadMusic::RhythmicUnit
#descending? HeadMusic::MelodicInterval
#descending_intervals HeadMusic::ScaleType
#description HeadMusic::ReferencePitch
#diatonic? HeadMusic::ScaleType
#diatonic_interval HeadMusic::MelodicInterval
#diatonic_interval HeadMusic::HarmonicInterval
#diatonic_intervals HeadMusic::PitchSet
#diatonic_intervals_above_bass_pitch HeadMusic::Sonority
#diatonic_intervals_above_bass_pitch HeadMusic::PitchSet
#diatonic_name HeadMusic::ChromaticInterval
#dichord? HeadMusic::PitchClassSet
#diminished_triad? HeadMusic::PitchSet
#direct? HeadMusic::Motion
#direction HeadMusic::MelodicInterval
#dissonance? HeadMusic::DiatonicInterval
#dodecachord? HeadMusic::PitchClassSet
#dots HeadMusic::Content::RhythmicValue
dots_from_words HeadMusic::Content::RhythmicValue
#double_flats HeadMusic::KeySignature
#double_sharps HeadMusic::KeySignature
#duple? HeadMusic::Meter
#during? HeadMusic::Content::Placement
#earliest_bar_number HeadMusic::Content::Voice
#earliest_bar_number HeadMusic::Content::Composition
#eleventh_chord? HeadMusic::PitchSet
#end_position HeadMusic::Style::Annotation
#end_position HeadMusic::Style::Mark
#enharmonic_equivalent? HeadMusic::Spelling::EnharmonicEquivalence
#enharmonic_equivalent? HeadMusic::KeySignature
#enharmonic_equivalent? HeadMusic::KeySignature::EnharmonicEquivalence
#enharmonic_equivalent? HeadMusic::Pitch::EnharmonicEquivalence
#ensure_localized_name HeadMusic::Named
#equivalent? HeadMusic::PitchSet
#equivalent? HeadMusic::PitchClassSet
#expand HeadMusic::DiatonicInterval::Parser
#family HeadMusic::Instrument
#family_key HeadMusic::Instrument
fetch_or_create HeadMusic::Pitch
fetch_or_create HeadMusic::Spelling
#first_harmonic_interval HeadMusic::Motion
#first_inversion_seventh_chord? HeadMusic::PitchSet
#first_inversion_triad? HeadMusic::PitchSet
#first_note HeadMusic::MelodicInterval
#first_pitch HeadMusic::MelodicInterval
#fitness HeadMusic::Style::Analysis
#fitness HeadMusic::Style::Annotation
#fitness HeadMusic::Style::Mark
#flags HeadMusic::RhythmicUnit
#flat_spelling HeadMusic::PitchClass
#flats HeadMusic::KeySignature
#flatter_spelling HeadMusic::PitchClass
for HeadMusic::Utilities::HashKey
for HeadMusic::Style::Mark
for_all HeadMusic::Style::Mark
for_denominator_value HeadMusic::RhythmicUnit
for_each HeadMusic::Style::Mark
#frequency HeadMusic::Pitch
#frequency HeadMusic::ReferencePitch
#frequency_for HeadMusic::Tuning
from HeadMusic::Quality
from_name HeadMusic::Pitch
from_name HeadMusic::Register
from_name HeadMusic::Spelling
from_name HeadMusic::LetterName
from_number HeadMusic::Pitch
from_number HeadMusic::Register
from_number HeadMusic::Spelling
from_number_and_letter HeadMusic::Pitch
from_number_and_letter HeadMusic::Spelling
from_pitch_class HeadMusic::Pitch
from_pitch_class HeadMusic::LetterName
from_words HeadMusic::Content::RhythmicValue
#fundamental_pitch_spelling HeadMusic::Instrument
get HeadMusic::Clef
get HeadMusic::Sign
get HeadMusic::Meter
get HeadMusic::Named::Locale
get HeadMusic::Pitch
get HeadMusic::Scale
get HeadMusic::Circle
get HeadMusic::Quality
get HeadMusic::Register
get HeadMusic::Spelling
get HeadMusic::Spelling::EnharmonicEquivalence
get HeadMusic::Consonance
get HeadMusic::Instrument
get HeadMusic::ScaleType
get HeadMusic::LetterName
get HeadMusic::PitchClass
get HeadMusic::Solmization
get HeadMusic::KeySignature
get HeadMusic::KeySignature::EnharmonicEquivalence
get HeadMusic::RhythmicUnit
get HeadMusic::IntervalCycle
get HeadMusic::ReferencePitch
get HeadMusic::DiatonicInterval
get HeadMusic::InstrumentFamily
get HeadMusic::ChromaticInterval
get HeadMusic::Content::RhythmicValue
get HeadMusic::Pitch::OctaveEquivalence
get HeadMusic::Pitch::EnharmonicEquivalence
#get_by_name HeadMusic::Named::ClassMethods
#guide HeadMusic::Style::Analysis
#helmholtz_case HeadMusic::Register
#helmholtz_marks HeadMusic::Register
#helmholtz_notation HeadMusic::Pitch
#heptachord? HeadMusic::PitchClassSet
#hexachord? HeadMusic::PitchClassSet
#high_pitch HeadMusic::MelodicInterval
#high_pitch HeadMusic::DiatonicInterval::Size
#higher_letter HeadMusic::DiatonicInterval::Parser
#higher_pitch HeadMusic::DiatonicInterval
#highest_notes HeadMusic::Content::Voice
#highest_pitch HeadMusic::Content::Voice
#html_entity HeadMusic::MusicalSymbol
#identifier HeadMusic::Sign
#identifier HeadMusic::Sonority
#identifier HeadMusic::DiatonicInterval::Parser
#imperfect_consonance? HeadMusic::DiatonicInterval
included HeadMusic::Named
#index HeadMusic::Circle
#initialize HeadMusic::Meter
#initialize HeadMusic::Named::Locale
#initialize HeadMusic::Named::LocalizedName
#initialize HeadMusic::Pitch
#initialize HeadMusic::Scale
#initialize HeadMusic::Staff
#initialize HeadMusic::Motion
#initialize HeadMusic::Tuning
#initialize HeadMusic::Quality
#initialize HeadMusic::Register
#initialize HeadMusic::Sonority
#initialize HeadMusic::Spelling
#initialize HeadMusic::Spelling::EnharmonicEquivalence
#initialize HeadMusic::PitchSet
#initialize HeadMusic::Consonance
#initialize HeadMusic::ScaleType
#initialize HeadMusic::Content::Bar
#initialize HeadMusic::LetterName
#initialize HeadMusic::PitchClass
#initialize HeadMusic::Content::Note
#initialize HeadMusic::ScaleDegree
#initialize HeadMusic::Content::Voice
#initialize HeadMusic::KeySignature
#initialize HeadMusic::KeySignature::EnharmonicEquivalence
#initialize HeadMusic::RhythmicUnit
#initialize HeadMusic::IntervalCycle
#initialize HeadMusic::MusicalSymbol
#initialize HeadMusic::Style::Analysis
#initialize HeadMusic::PitchClassSet
#initialize HeadMusic::ReferencePitch
#initialize HeadMusic::Content::Position
#initialize HeadMusic::MelodicInterval
#initialize HeadMusic::Style::Annotation
#initialize HeadMusic::Content::Placement
#initialize HeadMusic::DiatonicInterval::Parser
#initialize HeadMusic::DiatonicInterval::Semitones
#initialize HeadMusic::DiatonicInterval::Category
#initialize HeadMusic::DiatonicInterval::Size
#initialize HeadMusic::DiatonicInterval::Naming
#initialize HeadMusic::DiatonicInterval
#initialize HeadMusic::HarmonicInterval
#initialize HeadMusic::ChromaticInterval
#initialize HeadMusic::Content::Composition
#initialize HeadMusic::Content::RhythmicValue
#initialize HeadMusic::Pitch::OctaveEquivalence
#initialize HeadMusic::Pitch::EnharmonicEquivalence
#initialize HeadMusic::Style::Mark
#inspect HeadMusic::PitchSet
#inspect HeadMusic::PitchClassSet
#instrument HeadMusic::Staff
#integer_notation HeadMusic::PitchSet
#interval HeadMusic::IntervalCycle
#interval_class HeadMusic::DiatonicInterval
#interval_class_name HeadMusic::DiatonicInterval
#intervals_to HeadMusic::PitchClass
#inversion HeadMusic::Sonority
#inversion HeadMusic::DiatonicInterval
#inversions HeadMusic::Sonority
#invert HeadMusic::PitchSet
#key_signature HeadMusic::Content::Bar
#key_signature HeadMusic::ScaleDegree
#key_signature HeadMusic::KeySignature::EnharmonicEquivalence
#key_signature HeadMusic::Content::Composition
#key_signature_at HeadMusic::Content::Composition
#key_signatures_down HeadMusic::Circle
#key_signatures_up HeadMusic::Circle
#language HeadMusic::Named::Locale
#large_leap? HeadMusic::DiatonicInterval::Category
#large_leaps HeadMusic::Content::Voice
#latest_bar_number HeadMusic::Content::Voice
#latest_bar_number HeadMusic::Content::Composition
#leap? HeadMusic::DiatonicInterval::Category
#leaps HeadMusic::Content::Voice
#letter_name HeadMusic::Spelling
#line HeadMusic::Clef
#line_count HeadMusic::Staff
#locale HeadMusic::Named::LocalizedName
#localized_name HeadMusic::Named
#localized_names HeadMusic::Named
#low_pitch HeadMusic::MelodicInterval
#low_pitch HeadMusic::DiatonicInterval::Size
#lower_note HeadMusic::HarmonicInterval
#lower_pitch HeadMusic::DiatonicInterval
#lower_pitch HeadMusic::HarmonicInterval
#lowest_notes HeadMusic::Content::Voice
#lowest_pitch HeadMusic::Content::Voice
#major_triad? HeadMusic::PitchSet
#marks HeadMusic::Style::Guidelines::Diatonic
#marks HeadMusic::Style::Guidelines::NoRests
#marks HeadMusic::Style::Guidelines::OneToOne
#marks HeadMusic::Style::Guidelines::AlwaysMove
#marks HeadMusic::Style::Guidelines::EndOnTonic
#marks HeadMusic::Style::Guidelines::SingableRange
#marks HeadMusic::Style::Guidelines::StartOnTonic
#marks HeadMusic::Style::Guidelines::MostlyConjunct
#marks HeadMusic::Style::Guidelines::ConsonantClimax
#marks HeadMusic::Style::Guidelines::PreferImperfect
#marks HeadMusic::Style::Guidelines::DirectionChanges
#marks HeadMusic::Style::Guidelines::NotesSameLength
#marks HeadMusic::Style::Guidelines::LimitOctaveLeaps
#marks HeadMusic::Style::Guidelines::SingableIntervals
#marks HeadMusic::Style::Guidelines::StepOutOfUnison
#marks HeadMusic::Style::Guidelines::StepToFinalNote
#marks HeadMusic::Style::Guidelines::ConsonantDownbeats
#marks HeadMusic::Style::Guidelines::RecoverLargeLeaps
#marks HeadMusic::Style::Guidelines::AtLeastEightNotes
#marks HeadMusic::Style::Guidelines::NoUnisonsInMiddle
#marks HeadMusic::Style::Guidelines::PrepareOctaveLeaps
#marks HeadMusic::Style::Guidelines::UpToFourteenNotes
#marks HeadMusic::Style::Guidelines::AvoidCrossingVoices
#marks HeadMusic::Style::Guidelines::StepUpToFinalNote
#marks HeadMusic::Style::Guidelines::PreferContraryMotion
#marks HeadMusic::Style::Guidelines::StepDownToFinalNote
#marks HeadMusic::Style::Guidelines::AvoidOverlappingVoices
#marks HeadMusic::Style::Guidelines::EndOnPerfectConsonance
#marks HeadMusic::Style::Guidelines::StartOnPerfectConsonance
#marks HeadMusic::Style::Guidelines::ApproachPerfectionContrarily
matcher HeadMusic::Sign
matching_string HeadMusic::Spelling
maximum_notes_per_direction HeadMusic::Style::Guidelines::FrequentDirectionChanges
maximum_notes_per_direction HeadMusic::Style::Guidelines::ModerateDirectionChanges
#melodic_intervals HeadMusic::Content::Voice
#message HeadMusic::Style::Annotation
#messages HeadMusic::Style::Analysis
#meter HeadMusic::Content::Bar
#meter HeadMusic::Content::Position
#meter HeadMusic::Content::Composition
#meter_at HeadMusic::Content::Composition
#method_missing HeadMusic::Content::Note
#method_missing HeadMusic::MelodicInterval
#method_missing HeadMusic::HarmonicInterval
middle_c HeadMusic::Pitch
#midi_note_number HeadMusic::Pitch
#minor_triad? HeadMusic::PitchSet
#modern? HeadMusic::Clef
#monochord? HeadMusic::PitchClassSet
#moving? HeadMusic::MelodicInterval
#multiple_staves? HeadMusic::Instrument
#multiplier HeadMusic::Content::RhythmicValue
#musical_symbol HeadMusic::Clef
#musical_symbol HeadMusic::Sign
#musical_symbols HeadMusic::Clef
#musical_symbols HeadMusic::Sign
#name HeadMusic::Clef
#name HeadMusic::Sign
#name HeadMusic::Named::LocalizedName
#name HeadMusic::Named
#name HeadMusic::Pitch
#name HeadMusic::Quality
#name HeadMusic::Spelling
#name HeadMusic::Consonance
#name HeadMusic::ScaleType
#name HeadMusic::LetterName
#name HeadMusic::KeySignature
#name HeadMusic::DiatonicInterval::Naming
#name HeadMusic::InstrumentFamily
#name HeadMusic::Content::Composition
#name HeadMusic::Content::RhythmicValue
#name= HeadMusic::Named
#name_for_degree HeadMusic::ScaleDegree
#name_key HeadMusic::Named
#name_key HeadMusic::Instrument
#name_key HeadMusic::InstrumentFamily
#name_modifier_prefix HeadMusic::Content::RhythmicValue
#natural HeadMusic::Pitch
#natural? HeadMusic::Spelling
natural_letter_pitch HeadMusic::Pitch
#natural_steps HeadMusic::Pitch
#next_position HeadMusic::Content::Placement
#ninth_chord? HeadMusic::PitchSet
#nonachord? HeadMusic::PitchClassSet
#notation HeadMusic::Instrument
#note? HeadMusic::Content::Placement
#note_at HeadMusic::Content::Voice
#note_following HeadMusic::Content::Voice
#note_preceding HeadMusic::Content::Voice
#notehead HeadMusic::RhythmicUnit
#notes HeadMusic::Motion
#notes HeadMusic::Content::Voice
#notes HeadMusic::MelodicInterval
#notes HeadMusic::HarmonicInterval
#notes? HeadMusic::Style::Annotation
#notes_during HeadMusic::Content::Voice
#notes_not_in_key HeadMusic::Content::Voice
#num_flats HeadMusic::KeySignature
#num_sharps HeadMusic::KeySignature
#number HeadMusic::Register
#number HeadMusic::PitchClass
#number HeadMusic::DiatonicInterval::Category
#number HeadMusic::DiatonicInterval::Size
#number HeadMusic::DiatonicInterval::Naming
#number_name HeadMusic::DiatonicInterval::Naming
#numerator HeadMusic::RhythmicUnit
#oblique? HeadMusic::Motion
#octachord? HeadMusic::PitchClassSet
#octave_equivalent? HeadMusic::Pitch::OctaveEquivalence
#octaves HeadMusic::DiatonicInterval::Size
of_fifths HeadMusic::Circle
of_fourths HeadMusic::Circle
#orchestra_section_key HeadMusic::Instrument
#orchestra_section_key HeadMusic::InstrumentFamily
#parallel? HeadMusic::Motion
#parent HeadMusic::ScaleType
#parent_name HeadMusic::ScaleType
#pentachord? HeadMusic::PitchClassSet
#pentatonic? HeadMusic::ScaleType
#per_whole HeadMusic::Content::RhythmicValue
#perfect_consonance? HeadMusic::DiatonicInterval
#pitch HeadMusic::Clef
#pitch HeadMusic::Content::Note
#pitch HeadMusic::ReferencePitch
#pitch HeadMusic::Content::Placement
#pitch HeadMusic::Pitch::OctaveEquivalence
#pitch HeadMusic::Pitch::EnharmonicEquivalence
#pitch_class HeadMusic::Spelling
#pitch_class HeadMusic::LetterName
#pitch_class_set HeadMusic::PitchSet
#pitch_class_set HeadMusic::IntervalCycle
#pitch_classes HeadMusic::PitchSet
#pitch_classes HeadMusic::IntervalCycle
#pitch_classes HeadMusic::PitchClassSet
#pitch_for_line HeadMusic::Clef
#pitch_for_space HeadMusic::Clef
#pitch_names HeadMusic::Scale
#pitch_orientation HeadMusic::HarmonicInterval
#pitch_set HeadMusic::Sonority
#pitched? HeadMusic::Instrument
#pitches HeadMusic::Scale
#pitches HeadMusic::PitchSet
#pitches HeadMusic::Content::Voice
#pitches HeadMusic::IntervalCycle
#pitches HeadMusic::MelodicInterval
#pitches HeadMusic::HarmonicInterval
#pitches_above_bass_pitch HeadMusic::PitchSet
#pitches_down HeadMusic::Circle
#place HeadMusic::Content::Voice
#placement HeadMusic::Content::Note
#placements HeadMusic::Content::Voice
#placements HeadMusic::Style::Mark
#position HeadMusic::LetterName
#position HeadMusic::Content::Note
#position HeadMusic::Content::Placement
#position HeadMusic::HarmonicInterval
#position_end HeadMusic::MelodicInterval
#position_start HeadMusic::MelodicInterval
#quadruple? HeadMusic::Meter
#quality HeadMusic::DiatonicInterval
#quality_for HeadMusic::DiatonicInterval::Parser
#quality_name HeadMusic::DiatonicInterval::Parser
#quality_name HeadMusic::DiatonicInterval::Naming
#quartal? HeadMusic::Sonority
#range HeadMusic::Content::Voice
#reduction HeadMusic::PitchSet
#reference_pitch HeadMusic::Tuning
#region HeadMusic::Named::Locale
#register HeadMusic::Pitch
#relative_value HeadMusic::RhythmicUnit
#relative_value HeadMusic::Content::RhythmicValue
#repetition? HeadMusic::Motion
#repetition? HeadMusic::MelodicInterval
#representions HeadMusic::Sign
#respond_to_missing? HeadMusic::Content::Note
#respond_to_missing? HeadMusic::MelodicInterval
#respond_to_missing? HeadMusic::HarmonicInterval
#rest? HeadMusic::Content::Placement
#rests HeadMusic::Content::Voice
#rhythmic_value HeadMusic::Content::Note
#rhythmic_value HeadMusic::Content::Placement
#role HeadMusic::Content::Voice
#root_pitch HeadMusic::Scale
#root_pitch_number HeadMusic::Scale
#root_position HeadMusic::Sonority
#root_position_seventh_chord? HeadMusic::PitchSet
#root_position_triad? HeadMusic::PitchSet
#scale HeadMusic::Pitch
#scale HeadMusic::Spelling
#scale HeadMusic::KeySignature
#scale_degrees HeadMusic::PitchSet
#scale_degrees_above_bass_pitch HeadMusic::PitchSet
#scale_type HeadMusic::Scale
#scale_type HeadMusic::KeySignature
#second_harmonic_interval HeadMusic::Motion
#second_inversion_seventh_chord? HeadMusic::PitchSet
#second_inversion_triad? HeadMusic::PitchSet
#second_note HeadMusic::MelodicInterval
#second_pitch HeadMusic::MelodicInterval
#secundal? HeadMusic::Sonority
#semitones HeadMusic::Sign
#semitones HeadMusic::DiatonicInterval::Size
#semitones HeadMusic::DiatonicInterval::Naming
#semitones HeadMusic::ChromaticInterval
#series_ascending HeadMusic::LetterName
#series_descending HeadMusic::LetterName
#set_name HeadMusic::ChromaticInterval
#seventh_chord? HeadMusic::Sonority
#seventh_chord? HeadMusic::PitchSet
#sharp_spelling HeadMusic::PitchClass
#sharps HeadMusic::KeySignature
#shorthand HeadMusic::Quality
#shorthand HeadMusic::DiatonicInterval::Naming
#sign HeadMusic::Spelling
#sign HeadMusic::ScaleDegree
#signs HeadMusic::KeySignature
#similar? HeadMusic::Motion
#simple HeadMusic::ChromaticInterval
#simple? HeadMusic::Meter
#simple? HeadMusic::DiatonicInterval::Size
#simple? HeadMusic::ChromaticInterval
#simple_name HeadMusic::DiatonicInterval::Naming
#simple_number HeadMusic::DiatonicInterval::Size
#simple_number HeadMusic::DiatonicInterval::Naming
#simple_number_name HeadMusic::DiatonicInterval::Naming
#simple_semitones HeadMusic::DiatonicInterval::Size
#simple_semitones HeadMusic::DiatonicInterval::Naming
#simple_steps HeadMusic::DiatonicInterval::Size
#single_staff? HeadMusic::Instrument
#single_value_name HeadMusic::Content::RhythmicValue
#size HeadMusic::PitchSet
#size HeadMusic::PitchClassSet
#skip? HeadMusic::DiatonicInterval::Category
#smallest_interval_to HeadMusic::PitchClass
#smart_spelling HeadMusic::PitchClass
#spans? HeadMusic::MelodicInterval
#spelling HeadMusic::Pitch
#spelling HeadMusic::Spelling::EnharmonicEquivalence
#spelling HeadMusic::PitchClass
#spelling HeadMusic::ScaleDegree
#spellings HeadMusic::Scale
#spellings HeadMusic::KeySignature
#spellings HeadMusic::IntervalCycle
#spellings_down HeadMusic::Circle
#spellings_up HeadMusic::Circle
#spells_consonant_triad_with? HeadMusic::MelodicInterval
#start_of_next_bar HeadMusic::Content::Position
#start_position HeadMusic::Style::Annotation
#start_position HeadMusic::Style::Mark
#starting_pitch HeadMusic::IntervalCycle
#state HeadMusic::ScaleType
#state HeadMusic::Content::Position
#stemmed? HeadMusic::RhythmicUnit
#step? HeadMusic::DiatonicInterval::Category
#steps HeadMusic::DiatonicInterval::Parser
#steps HeadMusic::DiatonicInterval::Size
#steps_down HeadMusic::LetterName
#steps_to HeadMusic::Pitch
#steps_to HeadMusic::LetterName
#steps_up HeadMusic::LetterName
#strength HeadMusic::Content::Position
#strong? HeadMusic::Content::Position
#strong_counts HeadMusic::Meter
#strong_ticks HeadMusic::Meter
#syllables HeadMusic::Solmization
symbol? HeadMusic::Sign
symbols HeadMusic::Sign
#tertian? HeadMusic::Sonority
#tertian? HeadMusic::PitchSet
#tetrachord? HeadMusic::PitchClassSet
#third_inversion_seventh_chord? HeadMusic::PitchSet
#thirteenth_chord? HeadMusic::PitchSet
#tick HeadMusic::Content::Position
#ticks HeadMusic::RhythmicUnit
#ticks HeadMusic::Content::RhythmicValue
#ticks_per_count HeadMusic::Meter
#tied_value HeadMusic::Content::RhythmicValue
#to_i HeadMusic::Pitch
#to_i HeadMusic::PitchClass
#to_i HeadMusic::ChromaticInterval
#to_integer_notation HeadMusic::PitchClass
#to_s HeadMusic::Sign
#to_s HeadMusic::Meter
#to_s HeadMusic::Pitch
#to_s HeadMusic::Motion
#to_s HeadMusic::Spelling
#to_s HeadMusic::PitchSet
#to_s HeadMusic::Content::Bar
#to_s HeadMusic::Content::Note
#to_s HeadMusic::ScaleDegree
#to_s HeadMusic::Content::Voice
#to_s HeadMusic::KeySignature
#to_s HeadMusic::PitchClassSet
#to_s HeadMusic::ReferencePitch
#to_s HeadMusic::MelodicInterval
#to_s HeadMusic::Content::Placement
#to_s HeadMusic::HarmonicInterval
#to_s HeadMusic::Content::Composition
#to_s HeadMusic::Content::RhythmicValue
#to_s HeadMusic::Style::Mark
#tonic_spelling HeadMusic::KeySignature
#top_number HeadMusic::Meter
#total_value HeadMusic::Content::RhythmicValue
#translation HeadMusic::Instrument
#transposing? HeadMusic::Instrument
#transposing_at_the_octave? HeadMusic::Instrument
#transposition HeadMusic::Instrument
#triad? HeadMusic::Sonority
#triad? HeadMusic::PitchSet
#trichord? HeadMusic::PitchClassSet
#triple? HeadMusic::Meter
#undecachord? HeadMusic::PitchClassSet
#unicode HeadMusic::MusicalSymbol
#uninvert HeadMusic::PitchSet
#unit HeadMusic::Content::RhythmicValue
unit_from_words HeadMusic::Content::RhythmicValue
#unit_value HeadMusic::Content::RhythmicValue
#upper_note HeadMusic::HarmonicInterval
#upper_pitch HeadMusic::HarmonicInterval
#values HeadMusic::Content::Position
#voice HeadMusic::Content::Note
#voice HeadMusic::Style::Analysis
#voice HeadMusic::Style::Annotation
#voice HeadMusic::Content::Placement
#voice1 HeadMusic::HarmonicInterval
#voice2 HeadMusic::HarmonicInterval
#voices HeadMusic::HarmonicInterval
#voices HeadMusic::Content::Composition
#weak? HeadMusic::Content::Position
#white_key? HeadMusic::PitchClass
#whole_tone? HeadMusic::ScaleType
#within_placement? HeadMusic::Content::Position
#words HeadMusic::DiatonicInterval::Parser