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FoxDotChord.ChordPattern

FoxDotChord._pattern.ChordPattern 🔗

Bases: Pattern

Class used by c to manipulate chords/notes/Patterns.

You probably shouldn't invoke this class manually, when calling c[...] this class will be returned, so it may be worth knowing its methods.

Source code in FoxDotChord/_pattern.py 
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class ChordPattern(Pattern):
    """
    Class used by `c` to manipulate chords/notes/Patterns.

    You probably shouldn't invoke this class manually, when calling
    c[...] this class will be returned, so it may be worth knowing
    its methods.
    """

    _degrees = {
        'I': 'tonic',
        'II': 'supertonic',
        'III': 'third',
        'IV': 'subdominant',
        'V': 'dominant',
        'VI': 'submediant',
        'VII': 'maj',
        'IX': 'ninth',
        'XI': 'eleventh',
        'XIII': 'thirteenth',
    }

    def degrees(self, grades: Union[str, list[str]], *args: str) -> Pattern:
        """
        Take certain degrees from all chords in the pattern.

        Parameters
        ----------
        grades : str | list[str]
            Degrees to be selected.
        *args : str
            Degrees to be selected.

        Examples
        --------
        Use the function to pick certain chord degrees:

        >>> c['F Am G C'].degrees('i')
        P[3, 5, 4, 0]

        Or use your shorthand function:

        >>> c['F Am G C'].deg('i')
        P[3, 5, 4, 0]

        An interesting example is taking the bass of the chords:

        >>> c['F Am G C'].deg('i')
        P[3, 5, 4, 0]

        It is also possible to take more than one degree of the chords:

        >>> c['F Am G C'].deg('i', 'iii')
        P[3, 5, 5, 7, 4, 6, 0, 2]
        >>> c['F Am G C'].deg(['i', 'iii'])
        P[3, 5, 5, 7, 4, 6, 0, 2]

        Only the degrees that are present in the chord will be returned.

        >>> c['C Dm7'].deg('i', 'vii')
        P[0, 1, 7]
        >>> c['C'].deg('vi')
        P[]

        Anything that is not a chord will be disregarded.

        >>> c['C', 2, (2, 2), [2, 2]].deg('i')
        P[0]

        Returns
        -------
        Pattern
            Note pattern.
        """
        if isinstance(grades, str):
            grades = grades.split(',')

        notes = (
            getattr(c, self._degrees.get(a.strip(), '_'), None)
            for c in self.data
            for a in map(str.upper, chain(grades, args))
        )

        return Pattern(list(filter(lambda n: n is not None, notes)))

    deg = degrees

    @property
    def i(self) -> Pattern:
        """
        Get the degree `I` (tonic) of the chords.

        Examples
        --------
        >>> c['C G'].i
        P[0, 4]

        >>> c['C G'].tonic
        P[0, 4]

        Returns
        -------
        Pattern
            Note pattern.
        """
        return self.degrees('I')

    @property
    def ii(self) -> Pattern:
        """
        Get the degree `II` (supertonic) of the chords.

        Examples
        --------
        >>> c['C2 G2'].ii
        P[1, 5]

        >>> c['C2 G2'].supertonic
        P[1, 5]

        Returns
        -------
        Pattern
            Note pattern.
        """
        return self.degrees('II')

    @property
    def iii(self) -> Pattern:
        """
        Get the degree `III` (third) of the chords.

        Examples
        --------
        >>> c['C G'].iii
        P[2, 6]

        >>> c['C G'].third
        P[2, 6]

        Returns
        -------
        Pattern
            Note pattern.
        """
        return self.degrees('III')

    @property
    def iv(self) -> Pattern:
        """
        Get the degree `IV` (subdominant) of the chords.

        Examples
        --------
        >>> c['C4 G4'].iv
        P[3, 7]

        >>> c['C4 G4'].subdominant
        P[3, 7]

        Returns
        -------
        Pattern
            Note pattern.
        """
        return self.degrees('IV')

    @property
    def v(self) -> Pattern:
        """
        Get the degree `V` (dominant) of the chords.

        Examples
        --------
        >>> c['C G'].v
        P[4, 8]

        >>> c['C G'].dominant
        P[4, 8]

        Returns
        -------
        Pattern
            Note pattern.
        """
        return self.degrees('V')

    @property
    def vi(self) -> Pattern:
        """
        Get the degree `VI` (submediant) of the chords.

        Examples
        --------
        >>> c['C6 G6'].vi
        P[5, 9]

        >>> c['C6 G6'].submediant
        P[5, 9]

        Returns
        -------
        Pattern
            Note pattern.
        """
        return self.degrees('VI')

    @property
    def vii(self) -> Pattern:
        """
        Get the degree `VII` (seven) of the chords.

        Examples
        --------
        >>> c['C7 G7M'].vii
        P[5.5, 10.5]

        >>> c['C7 G7M'].seven
        P[5.5, 10.5]

        Returns
        -------
        Pattern
            Note pattern.
        """
        return self.degrees('VII')

    @property
    def ix(self) -> Pattern:
        """
        Get the degree `IX` (ninth) of the chords.

        Examples
        --------
        >>> c['C9 G9'].ix
        P[8, 12]

        >>> c['C9 G9'].ninth
        P[8, 12]

        Returns
        -------
        Pattern
            Note pattern.
        """
        return self.degrees('IX')

    @property
    def xi(self) -> Pattern:
        """
        Get the degree `XI` (eleventh) of the chords.

        Examples
        --------
        >>> c['C11 G11'].xi
        P[10, 14]

        >>> c['C11 G11'].eleventh
        P[10, 14]

        Returns
        -------
        Pattern
            Note pattern.
        """
        return self.degrees('XI')

    @property
    def xiii(self) -> Pattern:
        """
        Get the degree `XIII` (thirteenth) of the chords.

        Examples
        --------
        >>> c['C13 G13'].xiii
        P[12, 16]

        >>> c['C13 G13'].thirteenth
        P[12, 16]

        Returns
        -------
        Pattern
            Note pattern.
        """
        return self.degrees('XIII')

    tonic = i
    supertonic = ii
    third = iii
    subdominant = iv
    dominant = v
    submediant = vi
    seven = vii
    ninth = ix
    eleventh = xi
    thirteenth = xiii

    def arp(self, arp_pattern: Union[Collection, None] = None):
        """
        Create a arpeggio pattern.

        Parameters
        ----------
        arp_pattern : Collection, optional
            Arpeggio pattern.

        Examples
        --------
        You can create arpeggios with all chords.

        >>> c['C G'].arp()
        P[0, 2, 4, 4, 6, 8]

        Or create  a new Pattern with each item repeated len(arp_pattern) times
        and incremented by arp_pattern.

        >>> c['C G'].arp([0, 3])
        P[0, 3, 2, 5, 4, 7, 4, 7, 6, 9, 8, 11]

        You can also create the arpeggio of a single chord when defining it.

        >>> c['C@ G']
        P[0, 2, 4, Chord('G')]

        Returns
        -------
        Pattern[int]
            Arpeggio pattern.
        """
        notes = [a.notes if hasattr(a, 'notes') else [a] for a in self]
        pattern = Pattern(reduce(iconcat, notes))

        if arp_pattern:
            return pattern.stutter(len(arp_pattern)) + arp_pattern
        return pattern

    def __mul__(self, other):
        """
        Multiple pattern.

        Parameters
        ----------
        other : int
            Times the pattern should be repeated.

        Examples
        --------
        Multiplying the chord sequence

        >>> c['C G'] * 3
        P[Chord('C'), Chord('G'), Chord('C'), Chord('G'), Chord('C'), Chord('G')]

        Multiplying the chord sequence with notes

        >>> c['C G', 1] * 3
        P[Chord('C'), Chord('G'), 1, Chord('C'), Chord('G'), 1, Chord('C'), Chord('G'), 1]

        Multiplying the chord sequence with notes and microtonal notes

        >>> c['C G', 1, 1.5] * 3
        P[Chord('C'), Chord('G'), 1, 1.5, Chord('C'), Chord('G'), 1, 1.5, Chord('C'), Chord('G'), 1, 1.5]

        Multiplying the chord sequence with notes, microtonal notes and note sequence

        >>> c['C G', 1, 1.5, [1, 2]] * 3
        P[Chord('C'), Chord('G'), 1, 1.5, P[1, 2], Chord('C'), Chord('G'), 1, 1.5, P[1, 2], Chord('C'), Chord('G'), 1, 1.5, P[1, 2]]

        Multiplying the sequence of chords with notes, microtonal notes and sequence of notes playing separately and together

        >>> c['C G', 1, 1.5, [1, 2], (2, 1)] * 3
        P[Chord('C'), Chord('G'), 1, 1.5, P[1, 2], P(2, 1), Chord('C'), Chord('G'), 1, 1.5, P[1, 2], P(2, 1), Chord('C'), Chord('G'), 1, 1.5, P[1, 2], P(2, 1)]

        Only interiors can be used, if another type is passed an error will be
        raised

        >>> c['C'] * True
        Traceback (most recent call last):
          ...
        NotImplementedError: Cannot multiplate 'True' -> <class 'bool'>

        >>> c['C'] * False
        Traceback (most recent call last):
          ...
        NotImplementedError: Cannot multiplate 'False' -> <class 'bool'>

        >>> c['C'] * 'string'
        Traceback (most recent call last):
          ...
        NotImplementedError: Cannot multiplate 'string' -> <class 'str'>

        >>> c['C'] * 1.0
        Traceback (most recent call last):
          ...
        NotImplementedError: Cannot multiplate '1.0' -> <class 'float'>

        """  # noqa: E501
        if not isinstance(other, int) or isinstance(other, bool):
            raise NotImplementedError(
                f"Cannot multiplate '{other}' -> {type(other)}"
            )

        copy = self.true_copy()
        copy.data.extend(
            [
                deepcopy(data)
                for _ in range(other - 1)
                for data in self.true_copy().data
            ]
        )
        return copy

    def __add__(self, other):
        """
        Added in pattern.

        Parameters
        ----------
        other : Any
            Element to be added.

        Examples
        --------
        You can use `+` to add an element or another sequence to the chord/note
        pattern.

        >>> c['C'] + Chord('D')
        P[Chord('C'), Chord('D')]

        >>> c['C'] + 'D'
        P[Chord('C'), Chord('D')]

        >>> c['C'] + ['D']
        P[Chord('C'), Chord('D')]

        >>> c['C'] + Pattern('D')
        P[Chord('C'), Chord('D')]

        >>> c['C'] + 1
        P[Chord('C'), 1]

        >>> c['C'] + 2.0
        P[Chord('C'), 2.0]

        >>> c['C'] + c['D']
        P[Chord('C'), Chord('D')]
        """  # noqa: E501
        copy = self.true_copy()
        if isinstance(other, Chord):
            copy.data.append(other)
        elif isinstance(other, str):
            copy.data.append(Chord(other))
        elif isinstance(other, (list, Pattern)):
            copy.data.extend(
                [
                    Chord(data) if isinstance(data, str) else deepcopy(data)
                    for data in list(other)
                ]
            )
        else:
            copy.data.append(other)

        return copy

i: Pattern property 🔗

Get the degree I (tonic) of the chords.

Examples:

>>> c['C G'].i
P[0, 4]

>>> c['C G'].tonic
P[0, 4]

Returns:

Type Description
Pattern

Note pattern.

ii: Pattern property 🔗

Get the degree II (supertonic) of the chords.

Examples:

>>> c['C2 G2'].ii
P[1, 5]

>>> c['C2 G2'].supertonic
P[1, 5]

Returns:

Type Description
Pattern

Note pattern.

iii: Pattern property 🔗

Get the degree III (third) of the chords.

Examples:

>>> c['C G'].iii
P[2, 6]

>>> c['C G'].third
P[2, 6]

Returns:

Type Description
Pattern

Note pattern.

iv: Pattern property 🔗

Get the degree IV (subdominant) of the chords.

Examples:

>>> c['C4 G4'].iv
P[3, 7]

>>> c['C4 G4'].subdominant
P[3, 7]

Returns:

Type Description
Pattern

Note pattern.

v: Pattern property 🔗

Get the degree V (dominant) of the chords.

Examples:

>>> c['C G'].v
P[4, 8]

>>> c['C G'].dominant
P[4, 8]

Returns:

Type Description
Pattern

Note pattern.

vi: Pattern property 🔗

Get the degree VI (submediant) of the chords.

Examples:

>>> c['C6 G6'].vi
P[5, 9]

>>> c['C6 G6'].submediant
P[5, 9]

Returns:

Type Description
Pattern

Note pattern.

vii: Pattern property 🔗

Get the degree VII (seven) of the chords.

Examples:

>>> c['C7 G7M'].vii
P[5.5, 10.5]

>>> c['C7 G7M'].seven
P[5.5, 10.5]

Returns:

Type Description
Pattern

Note pattern.

ix: Pattern property 🔗

Get the degree IX (ninth) of the chords.

Examples:

>>> c['C9 G9'].ix
P[8, 12]

>>> c['C9 G9'].ninth
P[8, 12]

Returns:

Type Description
Pattern

Note pattern.

xi: Pattern property 🔗

Get the degree XI (eleventh) of the chords.

Examples:

>>> c['C11 G11'].xi
P[10, 14]

>>> c['C11 G11'].eleventh
P[10, 14]

Returns:

Type Description
Pattern

Note pattern.

xiii: Pattern property 🔗

Get the degree XIII (thirteenth) of the chords.

Examples:

>>> c['C13 G13'].xiii
P[12, 16]

>>> c['C13 G13'].thirteenth
P[12, 16]

Returns:

Type Description
Pattern

Note pattern.

degrees(grades: Union[str, list[str]], *args: str) -> Pattern 🔗

Take certain degrees from all chords in the pattern.

Parameters:

Name Type Description Default
grades str | list[str]

Degrees to be selected.

 required
*args str

Degrees to be selected.

 ()

Examples:

Use the function to pick certain chord degrees:

>>> c['F Am G C'].degrees('i')
P[3, 5, 4, 0]

Or use your shorthand function:

>>> c['F Am G C'].deg('i')
P[3, 5, 4, 0]

An interesting example is taking the bass of the chords:

>>> c['F Am G C'].deg('i')
P[3, 5, 4, 0]

It is also possible to take more than one degree of the chords:

>>> c['F Am G C'].deg('i', 'iii')
P[3, 5, 5, 7, 4, 6, 0, 2]
>>> c['F Am G C'].deg(['i', 'iii'])
P[3, 5, 5, 7, 4, 6, 0, 2]

Only the degrees that are present in the chord will be returned.

>>> c['C Dm7'].deg('i', 'vii')
P[0, 1, 7]
>>> c['C'].deg('vi')
P[]

Anything that is not a chord will be disregarded.

>>> c['C', 2, (2, 2), [2, 2]].deg('i')
P[0]

Returns:

Type Description
Pattern

Note pattern.
Source code in FoxDotChord/_pattern.py 
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def degrees(self, grades: Union[str, list[str]], *args: str) -> Pattern:
    """
    Take certain degrees from all chords in the pattern.

    Parameters
    ----------
    grades : str | list[str]
        Degrees to be selected.
    *args : str
        Degrees to be selected.

    Examples
    --------
    Use the function to pick certain chord degrees:

    >>> c['F Am G C'].degrees('i')
    P[3, 5, 4, 0]

    Or use your shorthand function:

    >>> c['F Am G C'].deg('i')
    P[3, 5, 4, 0]

    An interesting example is taking the bass of the chords:

    >>> c['F Am G C'].deg('i')
    P[3, 5, 4, 0]

    It is also possible to take more than one degree of the chords:

    >>> c['F Am G C'].deg('i', 'iii')
    P[3, 5, 5, 7, 4, 6, 0, 2]
    >>> c['F Am G C'].deg(['i', 'iii'])
    P[3, 5, 5, 7, 4, 6, 0, 2]

    Only the degrees that are present in the chord will be returned.

    >>> c['C Dm7'].deg('i', 'vii')
    P[0, 1, 7]
    >>> c['C'].deg('vi')
    P[]

    Anything that is not a chord will be disregarded.

    >>> c['C', 2, (2, 2), [2, 2]].deg('i')
    P[0]

    Returns
    -------
    Pattern
        Note pattern.
    """
    if isinstance(grades, str):
        grades = grades.split(',')

    notes = (
        getattr(c, self._degrees.get(a.strip(), '_'), None)
        for c in self.data
        for a in map(str.upper, chain(grades, args))
    )

    return Pattern(list(filter(lambda n: n is not None, notes)))

arp(arp_pattern: Union[Collection, None] = None) 🔗

Create a arpeggio pattern.

Parameters:

Name Type Description Default
arp_pattern Collection

Arpeggio pattern.

 None

Examples:

You can create arpeggios with all chords.

>>> c['C G'].arp()
P[0, 2, 4, 4, 6, 8]

Or create a new Pattern with each item repeated len(arp_pattern) times and incremented by arp_pattern.

>>> c['C G'].arp([0, 3])
P[0, 3, 2, 5, 4, 7, 4, 7, 6, 9, 8, 11]

You can also create the arpeggio of a single chord when defining it.

>>> c['C@ G']
P[0, 2, 4, Chord('G')]

Returns:

Type Description
Pattern[int]

Arpeggio pattern.
Source code in FoxDotChord/_pattern.py 
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def arp(self, arp_pattern: Union[Collection, None] = None):
    """
    Create a arpeggio pattern.

    Parameters
    ----------
    arp_pattern : Collection, optional
        Arpeggio pattern.

    Examples
    --------
    You can create arpeggios with all chords.

    >>> c['C G'].arp()
    P[0, 2, 4, 4, 6, 8]

    Or create  a new Pattern with each item repeated len(arp_pattern) times
    and incremented by arp_pattern.

    >>> c['C G'].arp([0, 3])
    P[0, 3, 2, 5, 4, 7, 4, 7, 6, 9, 8, 11]

    You can also create the arpeggio of a single chord when defining it.

    >>> c['C@ G']
    P[0, 2, 4, Chord('G')]

    Returns
    -------
    Pattern[int]
        Arpeggio pattern.
    """
    notes = [a.notes if hasattr(a, 'notes') else [a] for a in self]
    pattern = Pattern(reduce(iconcat, notes))

    if arp_pattern:
        return pattern.stutter(len(arp_pattern)) + arp_pattern
    return pattern

__mul__(other) 🔗

Multiple pattern.

Parameters:

Name Type Description Default
other int

Times the pattern should be repeated.

 required

Examples:

Multiplying the chord sequence

>>> c['C G'] * 3
P[Chord('C'), Chord('G'), Chord('C'), Chord('G'), Chord('C'), Chord('G')]

Multiplying the chord sequence with notes

>>> c['C G', 1] * 3
P[Chord('C'), Chord('G'), 1, Chord('C'), Chord('G'), 1, Chord('C'), Chord('G'), 1]

Multiplying the chord sequence with notes and microtonal notes

>>> c['C G', 1, 1.5] * 3
P[Chord('C'), Chord('G'), 1, 1.5, Chord('C'), Chord('G'), 1, 1.5, Chord('C'), Chord('G'), 1, 1.5]

Multiplying the chord sequence with notes, microtonal notes and note sequence

>>> c['C G', 1, 1.5, [1, 2]] * 3
P[Chord('C'), Chord('G'), 1, 1.5, P[1, 2], Chord('C'), Chord('G'), 1, 1.5, P[1, 2], Chord('C'), Chord('G'), 1, 1.5, P[1, 2]]

Multiplying the sequence of chords with notes, microtonal notes and sequence of notes playing separately and together

>>> c['C G', 1, 1.5, [1, 2], (2, 1)] * 3
P[Chord('C'), Chord('G'), 1, 1.5, P[1, 2], P(2, 1), Chord('C'), Chord('G'), 1, 1.5, P[1, 2], P(2, 1), Chord('C'), Chord('G'), 1, 1.5, P[1, 2], P(2, 1)]

Only interiors can be used, if another type is passed an error will be raised

>>> c['C'] * True
Traceback (most recent call last):
  ...
NotImplementedError: Cannot multiplate 'True' -> <class 'bool'>

>>> c['C'] * False
Traceback (most recent call last):
  ...
NotImplementedError: Cannot multiplate 'False' -> <class 'bool'>

>>> c['C'] * 'string'
Traceback (most recent call last):
  ...
NotImplementedError: Cannot multiplate 'string' -> <class 'str'>

>>> c['C'] * 1.0
Traceback (most recent call last):
  ...
NotImplementedError: Cannot multiplate '1.0' -> <class 'float'>
Source code in FoxDotChord/_pattern.py 
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def __mul__(self, other):
    """
    Multiple pattern.

    Parameters
    ----------
    other : int
        Times the pattern should be repeated.

    Examples
    --------
    Multiplying the chord sequence

    >>> c['C G'] * 3
    P[Chord('C'), Chord('G'), Chord('C'), Chord('G'), Chord('C'), Chord('G')]

    Multiplying the chord sequence with notes

    >>> c['C G', 1] * 3
    P[Chord('C'), Chord('G'), 1, Chord('C'), Chord('G'), 1, Chord('C'), Chord('G'), 1]

    Multiplying the chord sequence with notes and microtonal notes

    >>> c['C G', 1, 1.5] * 3
    P[Chord('C'), Chord('G'), 1, 1.5, Chord('C'), Chord('G'), 1, 1.5, Chord('C'), Chord('G'), 1, 1.5]

    Multiplying the chord sequence with notes, microtonal notes and note sequence

    >>> c['C G', 1, 1.5, [1, 2]] * 3
    P[Chord('C'), Chord('G'), 1, 1.5, P[1, 2], Chord('C'), Chord('G'), 1, 1.5, P[1, 2], Chord('C'), Chord('G'), 1, 1.5, P[1, 2]]

    Multiplying the sequence of chords with notes, microtonal notes and sequence of notes playing separately and together

    >>> c['C G', 1, 1.5, [1, 2], (2, 1)] * 3
    P[Chord('C'), Chord('G'), 1, 1.5, P[1, 2], P(2, 1), Chord('C'), Chord('G'), 1, 1.5, P[1, 2], P(2, 1), Chord('C'), Chord('G'), 1, 1.5, P[1, 2], P(2, 1)]

    Only interiors can be used, if another type is passed an error will be
    raised

    >>> c['C'] * True
    Traceback (most recent call last):
      ...
    NotImplementedError: Cannot multiplate 'True' -> <class 'bool'>

    >>> c['C'] * False
    Traceback (most recent call last):
      ...
    NotImplementedError: Cannot multiplate 'False' -> <class 'bool'>

    >>> c['C'] * 'string'
    Traceback (most recent call last):
      ...
    NotImplementedError: Cannot multiplate 'string' -> <class 'str'>

    >>> c['C'] * 1.0
    Traceback (most recent call last):
      ...
    NotImplementedError: Cannot multiplate '1.0' -> <class 'float'>

    """  # noqa: E501
    if not isinstance(other, int) or isinstance(other, bool):
        raise NotImplementedError(
            f"Cannot multiplate '{other}' -> {type(other)}"
        )

    copy = self.true_copy()
    copy.data.extend(
        [
            deepcopy(data)
            for _ in range(other - 1)
            for data in self.true_copy().data
        ]
    )
    return copy

__add__(other) 🔗

Added in pattern.

Parameters:

Name Type Description Default
other Any

Element to be added.

 required

Examples:

You can use + to add an element or another sequence to the chord/note pattern.

>>> c['C'] + Chord('D')
P[Chord('C'), Chord('D')]

>>> c['C'] + 'D'
P[Chord('C'), Chord('D')]

>>> c['C'] + ['D']
P[Chord('C'), Chord('D')]

>>> c['C'] + Pattern('D')
P[Chord('C'), Chord('D')]

>>> c['C'] + 1
P[Chord('C'), 1]

>>> c['C'] + 2.0
P[Chord('C'), 2.0]

>>> c['C'] + c['D']
P[Chord('C'), Chord('D')]
Source code in FoxDotChord/_pattern.py 
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def __add__(self, other):
    """
    Added in pattern.

    Parameters
    ----------
    other : Any
        Element to be added.

    Examples
    --------
    You can use `+` to add an element or another sequence to the chord/note
    pattern.

    >>> c['C'] + Chord('D')
    P[Chord('C'), Chord('D')]

    >>> c['C'] + 'D'
    P[Chord('C'), Chord('D')]

    >>> c['C'] + ['D']
    P[Chord('C'), Chord('D')]

    >>> c['C'] + Pattern('D')
    P[Chord('C'), Chord('D')]

    >>> c['C'] + 1
    P[Chord('C'), 1]

    >>> c['C'] + 2.0
    P[Chord('C'), 2.0]

    >>> c['C'] + c['D']
    P[Chord('C'), Chord('D')]
    """  # noqa: E501
    copy = self.true_copy()
    if isinstance(other, Chord):
        copy.data.append(other)
    elif isinstance(other, str):
        copy.data.append(Chord(other))
    elif isinstance(other, (list, Pattern)):
        copy.data.extend(
            [
                Chord(data) if isinstance(data, str) else deepcopy(data)
                for data in list(other)
            ]
        )
    else:
        copy.data.append(other)

    return copy