mingus.core.scales

Module for dealing with scales.

The scales module allows you to create a plethora of scales. Here’s a little overview:

The diatonic scales

• Diatonic(note, semitones)

Ancient scales

• Ionian(note)
• Dorian(note)
• Phrygian(note)
• Lydian(note)
• Mixolydian(note)
• Aeolian(note)
• Locrian(note)

The major scales

• Major(note)
• HarmonicMajor(note)

The minor scales

• NaturalMinor(note)
• HarmonicMinor(note)
• MelodicMinor(note)
• Bachian(note)
• MinorNeapolitan(note)

Other scales

• Chromatic(note)
• WholeTone(note)
• Octatonic(note)

class mingus.core.scales.Aeolian

__eq__(self, other)

__init__(self, note, octaves=1)

Create the aeolian mode scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'ancient'

class mingus.core.scales.Bachian

__eq__(self, other)

__init__(self, note, octaves=1)

Create the Bachian (also known as “real melodic minor” and “jazz”) scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'minor'

class mingus.core.scales.Chromatic

__eq__(self, other)

__init__(self, key, octaves=1)

Create the chromatic scale in the chosen key.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

type

Attribute of type: str 'other'

class mingus.core.scales.Diatonic

__eq__(self, other)

__init__(self, note, semitones, octaves=1)

Create the diatonic scale starting on the chosen note.

The second parameter is a tuple representing the position of semitones.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'diatonic'

class mingus.core.scales.Dorian

__eq__(self, other)

__init__(self, note, octaves=1)

Create the dorian mode scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'ancient'

class mingus.core.scales.HarmonicMajor

__eq__(self, other)

__init__(self, note, octaves=1)

Create the harmonic major scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'major'

class mingus.core.scales.HarmonicMinor

__eq__(self, other)

__init__(self, note, octaves=1)

Create the harmonic minor scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'minor'

class mingus.core.scales.Ionian

__eq__(self, other)

__init__(self, note, octaves=1)

Create the ionian mode scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'ancient'

class mingus.core.scales.Locrian

__eq__(self, other)

__init__(self, note, octaves=1)

Create the locrian mode scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'ancient'

class mingus.core.scales.Lydian

__eq__(self, other)

__init__(self, note, octaves=1)

Create the lydian mode scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'ancient'

class mingus.core.scales.Major

__eq__(self, other)

__init__(self, note, octaves=1)

Create the major scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'major'

class mingus.core.scales.MelodicMinor

__eq__(self, other)

__init__(self, note, octaves=1)

Create the melodic minor scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

type

Attribute of type: str 'minor'

class mingus.core.scales.MinorNeapolitan

__eq__(self, other)

__init__(self, note, octaves=1)

Create the minor Neapolitan scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

type

Attribute of type: str 'minor'

class mingus.core.scales.Mixolydian

__eq__(self, other)

__init__(self, note, octaves=1)

Create the mixolydian mode scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'ancient'

class mingus.core.scales.NaturalMinor

__eq__(self, other)

__init__(self, note, octaves=1)

Return the natural minor scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'minor'

class mingus.core.scales.Octatonic

__eq__(self, other)

__init__(self, note, octaves=1)

Create the octatonic (also known as “diminshed”) scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'other'

class mingus.core.scales.Phrygian

__eq__(self, other)

__init__(self, note, octaves=1)

Create the phrygian mode scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'ancient'

class mingus.core.scales.WholeTone

__eq__(self, other)

__init__(self, note, octaves=1)

Create the whole tone scale starting on the chosen note.

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

type

Attribute of type: str 'other'

class mingus.core.scales._Scale

__eq__(self, other)

__init__(self, note, octaves)

__len__(self)

__ne__(self, other)

__repr__(self)

__str__(self)

ascending(self)

Return the list of ascending notes.

degree(self, degree_number, direction=a)

Return the asked scale degree.

The direction of the scale is ‘a’ for ascending (default) and ‘d’ for descending.

descending(self)

Return the list of descending notes.

---

mingus.core.scales.keys

Attribute of type: list [('Cb', 'ab'), ('Gb', 'eb'), ('Db', 'bb'), ('Ab', 'f'), ('Eb', 'c'), ('Bb', 'g'), ('F', 'd'), ('C', 'a'), ('G', 'e'), ('D', 'b'), ('A', 'f#'), ('E', 'c#'), ('B', 'g#'), ('F#', 'd#'), ('C#', 'a#')]

---

mingus.core.scales.augment(note)

Augment a given note.

Examples:

>>> augment('C')
'C#'
>>> augment('Cb')
'C'

---

mingus.core.scales.determine(notes)

Determine the scales containing the notes.

All major and minor scales are recognized.

Example:

>>> determine(['A', 'Bb', 'E', 'F#', 'G'])
['G melodic minor', 'G Bachian', 'D harmonic major']

---

mingus.core.scales.diminish(note)

Diminish a given note.

Examples:

>>> diminish('C')
'Cb'
>>> diminish('C#')
'C'

---

mingus.core.scales.get_notes(key=C)

Return an ordered list of the notes in this natural key.

Examples:

>>> get_notes('F')
['F', 'G', 'A', 'Bb', 'C', 'D', 'E']
>>> get_notes('c')
['C', 'D', 'Eb', 'F', 'G', 'Ab', 'Bb']

---

mingus.core.scales.reduce_accidentals(note)

Reduce any extra accidentals to proper notes.

Example:

>>> reduce_accidentals('C####')
'E'

---

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