Real-time collaboration for Jupyter Notebooks, Linux Terminals, LaTeX, VS Code, R IDE, and more,
all in one place. Commercial Alternative to JupyterHub.
Real-time collaboration for Jupyter Notebooks, Linux Terminals, LaTeX, VS Code, R IDE, and more,
all in one place. Commercial Alternative to JupyterHub.
Path: blob/master/Sequence Models/Week 1/Jazz improvisation with LSTM/__pycache__/grammar.cpython-36.pyc
Views: 13383
3
�SoZ�; � @ s� d Z ddlmZmZ ddlmZ ddlT ddlZddlZddl Z dd� Z
dd � Z d
d � Z d d
� Z
dd� Zdd� Zdd� Zdd� Zdd� ZdS )z�
Author: Ji-Sung Kim, Evan Chow
Project: jazzml / (used in) deepjazz
Purpose: Extract, manipulate, process musical grammar
Directly taken then cleaned up from Evan Chow's jazzml,
https://github.com/evancchow/jazzml,with permission.
� )� OrderedDict� defaultdict)�groupby)�*Nc C sZ t j� }| jdkrt j� }|j| �}ttdd� |j� D ���}dd� |D �}|j}||kS )N�majorc S s g | ]}|�qS � r )�.0�pitchr r �@/home/jovyan/work/Week 1/Jazz improvisation with LSTM/grammar.py�
<listcomp> s z#__is_scale_tone.<locals>.<listcomp>c S s g | ]
}|j �qS r )�name)r �ir r r
r s ) �scale� DorianScale�quality�
MajorScale�derive�list�set�
getPitchesr )�chord�note� scaleType�scales�
allPitches� allNoteNames�noteNamer r r
�__is_scale_tone s
r c C sd x^| j D ]T}|jd�}|jd�}|j|jksX|j|j� jksX|j|jksX|j|j� jkrdS qW dS )N� TF�����)�pitches� transposer �
getEnharmonic)r r Z
chordPitchZstepUpZstepDownr r r
�__is_approach_tone& s
r# c C s |j dd� | jD �kS )Nc s s | ] }|j V qd S )N)r )r �pr r r
� <genexpr>5 s z"__is_chord_tone.<locals>.<genexpr>)r r )� lastChordr r r r
�__is_chord_tone4 s r' c C s dd� | j D �}tjtj|��S )Nc S s g | ]
}|j �qS r )�nameWithOctave)r r$ r r r
r 9 s z)__generate_chord_tone.<locals>.<listcomp>)r r �Note�random�choice)r& ZlastChordNoteNamesr r r
�__generate_chord_tone8 s r, c C s� t j� }| jdkrt j� }|j| �}ttdd� |j� D ���}dd� |D �}tj |�}| j
� }tj dd� |j D ��}t j
d||f �}|S )Nr c S s g | ]}|�qS r r )r r r r r
r F s z)__generate_scale_tone.<locals>.<listcomp>c S s g | ]
}|j �qS r )r )r r
r r r
r G s c S s g | ]
}|j �qS r )�octave)r r
r r r
r L s z%s%s)r �WeightedHexatonicBluesr r r r r r r* r+ �
sortAscendingr r r) ) r& r r r r Z sNoteNameZ
lastChordSortZ sNoteOctave�sNoter r r
�__generate_scale_tone= s
r1 c C s t | �}|jtjddg��}|S )Nr r )r1 r! r* r+ )r& r0 ZaNoter r r
�__generate_approach_toneQ s r2 c C s t | �S )N)r1 )r& r r r
�__generate_arbitrary_toneW s r3 c
s� t j| �}t j|�}|jtjtjg� |jtjg� |d j|d jd }|d j| }d}d }d}�x�t |�D �]v\} � y� fdd�|D �d }
W n4 t
k
r� ||d _� fdd�|D �d }
Y nX d} t � tj�r�d } nH� j |
j
kp�t � tj��rd
} n(t|
� ��rd } nt|
� ��r&d } nd
} | t|�d k�rL|d � j } n|| d j� j } d| � jf }
d}t � tj��r�|d7 }|dk�r�� }n>tj|� d�}tj|dg�}tj|dg�}d|j|jf }� }|
| }||d 7 }qrW |j� S )Nr � � c s g | ]}|j � j kr|�qS r )�offset)r �n)�nrr r
r � s z parse_melody.<locals>.<listcomp>r c s g | ]}|j � j kr|�qS r )r6 )r r7 )r8 r r
r � s � �R�C�S�A�Xg @z%s,%.3f)� noteStart�noteEnd�m3z,<%s,%s>r r )�copy�deepcopy�removeByNotOfClassr r) �Restr �Chordr6 � enumerate�
IndexError�
isinstancer �
pitchNamesr r# �len�
quarterLength�interval�Interval�add�subtract� directedName�rstrip)ZfullMeasureNotesZfullMeasureChords�measure�chordsZmeasureStartTime�measureStartOffsetZ fullGrammar�prevNoteZ numNonRests�ixr& Z elementType�diffZnoteInfoZ intervalInfoZnoteDistZ
noteDistUpperZ
noteDistLowerZ grammarTermr )r8 r
� parse_melody� sV
rY c
s< t j� }d� d ��x$t| jd��D �]\}}|jd�}� t|d �7 � |d dkrttjt|d �d�}|j� |� q"y� fdd �|D �d }W n4 tk
r� d|d _ � fd
d �|D �d }Y nX t
|�d k�rBtj � }|d d kr�t |�}n |d d
k�rt
|�}nt|�}t|d �|_|jdk �r0d|_|j� |� |�q"tj|d jdd��} tj|d jdd��}
| j|
jk�r�| |
} } n
|
| } } tj�j| �}
tj�j| �}t|j|
j d �}|d d k�r�g }x>td|�D ]0}tj |
j|�j� �}t ||��r�|j |� �q�W t
|�dk�r<t j �fdd �|D ��}n,t
|�dk�rT|d }n�jt j dd g��}|jdk �rzd|_t|d �|_|j� |� �n�|d d
k�rlg }x>td|�D ]0}tj |
j|�j� �}t ||��r�|j |� �q�W t
|�dk�rt j �fdd �|D ��}n,t
|�dk�r*|d }n�jt j dd g��}|jdk �rPd|_t|d �|_|j� |� n�g }x>td|�D ]0}tj |
j|�j� �}t!||��r||j |� �q|W t
|�dk�r�t j �fdd �|D ��}n,t
|�dk�r�|d }n�jt j dd g��}|jdk �rd|_t|d �|_|j� |� |�q"W |S )Ng r9 �,r r r: )rL c s g | ]}|j � kr|�qS r )r6 )r r7 )�
currOffsetr r
r � s z#unparse_grammar.<locals>.<listcomp>c s g | ]}|j � kr|�qS r )r6 )r r7 )r[ r r
r � s � r; r< r4 �<r5 � �>c s g | ]}|j � j kr|�qS r )r( )r r
)� prevElementr r
r " s c s g | ]}|j � j kr|�qS r )r( )r r
)r` r r
r 5 s c s g | ]}|j � j kr|�qS r )r( )r r
)r` r r
r I s r r �����ra ra )"�stream�VoicerG �split�floatr rE �insertrH r6 rK r) r, r1 r2 rL r- rM rN �replace�cents�transposePitchr �int�ps�ranger! �simplifyEnharmonicr' �appendr* r+ r r# )Z
m1_grammarZ m1_chordsZ m1_elementsrW ZgrammarElement�termsZrNoter& Z
insertNote� interval1� interval2Z
upperIntervalZ
lowerIntervalZlowPitchZ highPitch�numNotesZrelevantChordTonesr
ZcurrNoteZrelevantScaleTonesZrelevantApproachTonesr )r[ r` r
�unparse_grammar� s�
rs )�__doc__� collectionsr r � itertoolsr �music21rB r* �pdbr r# r' r, r1 r2 r3 rY rs r r r r
�<module> s )W