.. _devTest_timespans:

.. WARNING: DO NOT EDIT THIS FILE:
   AUTOMATICALLY GENERATED.
   PLEASE EDIT THE .py FILE DIRECTLY.

Timespan Demos
==============

Work in progress...

.. code:: ipython3

    from music21 import *

.. code:: ipython3

    luca = corpus.parse('luca/gloria').measures(1, 8)

.. code:: ipython3

    tsCol = luca.asTimespans()

.. code:: ipython3

    tsCol




.. parsed-literal::
   :class: ipython-result

    <TimespanTree {88} (0.0 to 24.0) <music21.stream.Score 0x10d792830>>



.. code:: ipython3

    for v in tsCol.iterateVerticalities():
        print(v)


.. parsed-literal::
   :class: ipython-result

    <music21.tree.verticality.Verticality 0.0 {F3 F4 C5}>
    <music21.tree.verticality.Verticality 3.0 {F3 F4 D5}>
    <music21.tree.verticality.Verticality 3.5 {F3 C4 C5}>
    <music21.tree.verticality.Verticality 4.5 {F3 C4 A4}>
    <music21.tree.verticality.Verticality 5.0 {F3 C4 F4}>
    <music21.tree.verticality.Verticality 5.5 {F3 A3 F4}>
    <music21.tree.verticality.Verticality 6.0 {F3 F4}>
    <music21.tree.verticality.Verticality 6.5 {F3 F4 A4}>
    <music21.tree.verticality.Verticality 7.5 {F3 F4 C5}>
    <music21.tree.verticality.Verticality 8.5 {F3 F4 C5}>
    <music21.tree.verticality.Verticality 9.0 {C4 E4 G4}>
    <music21.tree.verticality.Verticality 10.5 {D4 F4 A4}>
    <music21.tree.verticality.Verticality 12.0 {C4 E4 G4}>
    <music21.tree.verticality.Verticality 15.0 {G3 G4 D5}>
    <music21.tree.verticality.Verticality 16.5 {A3 E4 C5}>
    <music21.tree.verticality.Verticality 17.5 {A3 E4 B4}>
    <music21.tree.verticality.Verticality 18.0 {D4 F4 A4}>
    <music21.tree.verticality.Verticality 18.5 {D4 F4 G4}>
    <music21.tree.verticality.Verticality 19.0 {D4 F4}>
    <music21.tree.verticality.Verticality 19.5 {C4 E4 G4}>
    <music21.tree.verticality.Verticality 20.0 {C4 F4 G4}>
    <music21.tree.verticality.Verticality 20.5 {C4 D4 G4}>
    <music21.tree.verticality.Verticality 21.0 {C4 E4}>
    <music21.tree.verticality.Verticality 21.5 {A3 E4}>
    <music21.tree.verticality.Verticality 22.0 {A3 C4 F4}>
    <music21.tree.verticality.Verticality 22.5 {B-3 D4 F4}>
    <music21.tree.verticality.Verticality 23.0 {G3 B-3 D4}>
    <music21.tree.verticality.Verticality 23.5 {B-3 D4 F4}>


.. code:: ipython3

    v4 = list(tsCol.iterateVerticalities())[4]

.. code:: ipython3

    v4




.. parsed-literal::
   :class: ipython-result

    <music21.tree.verticality.Verticality 5.0 {F3 C4 F4}>



.. code:: ipython3

    v4.pitchSet




.. parsed-literal::
   :class: ipython-result

    {<music21.pitch.Pitch F3>, <music21.pitch.Pitch C4>, <music21.pitch.Pitch F4>}



.. code:: ipython3

    f = sorted(v4.pitchSet)[0]

.. code:: ipython3

    f




.. parsed-literal::
   :class: ipython-result

    <music21.pitch.Pitch F3>



.. code:: ipython3

    v4.startTimespans




.. parsed-literal::
   :class: ipython-result

    (<PitchedTimespan (5.0 to 6.0) <music21.note.Note F>>,)



.. code:: ipython3

    v4.stopTimespans




.. parsed-literal::
   :class: ipython-result

    (<PitchedTimespan (4.5 to 5.0) <music21.note.Note A>>,)



.. code:: ipython3

    v4.overlapTimespans




.. parsed-literal::
   :class: ipython-result

    (<PitchedTimespan (3.0 to 6.0) <music21.note.Note F>>,
     <PitchedTimespan (4.5 to 5.5) <music21.note.Note C>>)



.. code:: ipython3

    v35 = tsCol.getVerticalityAt(3.5)

.. code:: ipython3

    v35




.. parsed-literal::
   :class: ipython-result

    <music21.tree.verticality.Verticality 3.5 {F3 C4 C5}>



.. code:: ipython3

    v35.startTimespans




.. parsed-literal::
   :class: ipython-result

    (<PitchedTimespan (3.5 to 4.5) <music21.note.Note C>>,
     <PitchedTimespan (3.5 to 4.5) <music21.note.Note C>>)



.. code:: ipython3

    v35.stopTimespans




.. parsed-literal::
   :class: ipython-result

    (<PitchedTimespan (3.0 to 3.5) <music21.note.Note D>>,
     <PitchedTimespan (3.0 to 3.5) <music21.note.Note F>>)



.. code:: ipython3

    v35.overlapTimespans




.. parsed-literal::
   :class: ipython-result

    (<PitchedTimespan (3.0 to 6.0) <music21.note.Note F>>,)



.. code:: ipython3

    elTsC = v35.startTimespans[0]

.. code:: ipython3

    elTsC, elTsC.element




.. parsed-literal::
   :class: ipython-result

    (<PitchedTimespan (3.5 to 4.5) <music21.note.Note C>>, <music21.note.Note C>)



Test previousVerticality with Rest

.. code:: ipython3

    v22 = tsCol.getVerticalityAt(22.0)

.. code:: ipython3

    v22




.. parsed-literal::
   :class: ipython-result

    <music21.tree.verticality.Verticality 22.0 {A3 C4 F4}>



.. code:: ipython3

    v22.startTimespans




.. parsed-literal::
   :class: ipython-result

    (<PitchedTimespan (22.0 to 22.5) <music21.note.Note C>>,
     <PitchedTimespan (22.0 to 23.0) <music21.note.Note F>>)



.. code:: ipython3

    elTSfollowingRest = v22.startTimespans[1]
    elTSfollowingRest




.. parsed-literal::
   :class: ipython-result

    <PitchedTimespan (22.0 to 23.0) <music21.note.Note F>>



.. code:: ipython3

    v22.stopTimespans




.. parsed-literal::
   :class: ipython-result

    (<PitchedTimespan (21.0 to 22.0) <music21.note.Note E>>,
     <ElementTimespan (21.5 to 22.0) <music21.note.Rest eighth>>)



.. code:: ipython3

    elTSfollowingRest.part




.. parsed-literal::
   :class: ipython-result

    <music21.stream.Part Cantus>



.. code:: ipython3

    score = tree.makeExampleScore()
    score.show()



.. image:: devTest_timespans_28_0.png
   :width: 674px
   :height: 115px


.. code:: ipython3

    tsColSmall = score.asTimespans()

.. code:: ipython3

    for v in tsColSmall.iterateVerticalities():
        if v:
            print(v)
            print(v.getAllVoiceLeadingQuartets())
        


.. parsed-literal::
   :class: ipython-result

    <music21.tree.verticality.Verticality 0.0 {C3 C#3}>


::


    ---------------------------------------------------------------------------

    TimespanTreeException                     Traceback (most recent call last)

    Input In [30], in <cell line: 1>()
          2 if v:
          3     print(v)
    ----> 4     print(v.getAllVoiceLeadingQuartets())


    File ~/git/music21base/music21/tree/verticality.py:988, in Verticality.getAllVoiceLeadingQuartets(self, includeRests, includeOblique, includeNoMotion, returnObjects, partPairNumbers)
        928 '''
        929 >>> c = corpus.parse('luca/gloria').measures(1, 8)
        930 >>> tsCol = tree.fromStream.asTimespans(c, flatten=True,
       (...)
        985 Changed in v8: all parameters are keyword only.
        986 '''
        987 from music21.voiceLeading import VoiceLeadingQuartet
    --> 988 pairedMotionList = self.getPairedMotion(includeRests=includeRests,
        989                                         includeOblique=includeOblique)
        990 allQuartets = itertools.combinations(pairedMotionList, 2)
        991 filteredList = []


    File ~/git/music21base/music21/tree/verticality.py:1089, in Verticality.getPairedMotion(self, includeRests, includeOblique)
       1086 allPairedMotions = []
       1088 for startingTs in startTss:
    -> 1089     previousTs = self.timespanTree.findPreviousPitchedTimespanInSameStreamByClass(
       1090         startingTs)
       1091     if previousTs is None:
       1092         continue  # first not in piece in this part...


    File ~/git/music21base/music21/tree/timespanTree.py:317, in TimespanTree.findPreviousPitchedTimespanInSameStreamByClass(self, pitchedTimespan, classList)
        315 if not isinstance(pitchedTimespan, spans.PitchedTimespan):
        316     message = f'PitchedTimespan {pitchedTimespan!r}, must be an PitchedTimespan'
    --> 317     raise TimespanTreeException(message)
        318 verticality = self.getVerticalityAt(pitchedTimespan.offset)
        319 while verticality is not None:


    TimespanTreeException: PitchedTimespan <ElementTimespan (0.0 to 0.0) <music21.instrument.Instrument 'PartA: : '>>, must be an PitchedTimespan


.. code:: ipython3

    lucaAll = corpus.parse('luca/gloria')
    tsCol = lucaAll.asTimespans()

.. code:: ipython3

    for v in tsCol.iterateVerticalities():
        vlqs = v.getAllVoiceLeadingQuartets()


::


    ---------------------------------------------------------------------------

    TimespanTreeException                     Traceback (most recent call last)

    /var/folders/mk/qf43gd_s5f30rzzbt7l7l01h0000gn/T/ipykernel_7366/2650510182.py in <module>
          1 for v in tsCol.iterateVerticalities():
    ----> 2     vlqs = v.getAllVoiceLeadingQuartets()
    

    ~/git/music21base/music21/tree/verticality.py in getAllVoiceLeadingQuartets(self, includeRests, includeOblique, includeNoMotion, returnObjects, partPairNumbers)
        975         '''
        976         from music21.voiceLeading import VoiceLeadingQuartet
    --> 977         pairedMotionList = self.getPairedMotion(includeRests=includeRests,
        978                                                 includeOblique=includeOblique)
        979         allQuartets = itertools.combinations(pairedMotionList, 2)


    ~/git/music21base/music21/tree/verticality.py in getPairedMotion(self, includeRests, includeOblique)
       1076 
       1077         for startingTs in startTss:
    -> 1078             previousTs = self.timespanTree.findPreviousPitchedTimespanInSameStreamByClass(
       1079                 startingTs)
       1080             if previousTs is None:


    ~/git/music21base/music21/tree/timespanTree.py in findPreviousPitchedTimespanInSameStreamByClass(self, pitchedTimespan, classList)
        302         if not isinstance(pitchedTimespan, spans.PitchedTimespan):
        303             message = f'PitchedTimespan {pitchedTimespan!r}, must be an PitchedTimespan'
    --> 304             raise TimespanTreeException(message)
        305         verticality = self.getVerticalityAt(pitchedTimespan.offset)
        306         while verticality is not None:


    TimespanTreeException: PitchedTimespan <ElementTimespan (0.0 to 0.0) <music21.text.TextBox '1'>>, must be an PitchedTimespan


.. code:: ipython3

    bach = corpus.parse('bwv66.6')

.. code:: ipython3

    meterCol = lucaAll.parts[0].asTimespans(classList=(meter.TimeSignature,))

.. code:: ipython3

    meterCol




.. parsed-literal::
   :class: ipython-result

    <TimespanTree {4} (0.0 to 275.0) <music21.stream.Part Cantus>>



.. code:: ipython3

    print(meterCol)


.. parsed-literal::
   :class: ipython-result

    <TimespanTree {4} (0.0 to 275.0) <music21.stream.Part Cantus>>
    	<ElementTimespan (0.0 to 0.0) <music21.meter.TimeSignature 6/8>>
    	<ElementTimespan (81.0 to 81.0) <music21.meter.TimeSignature 2/4>>
    	<ElementTimespan (185.0 to 185.0) <music21.meter.TimeSignature 6/8>>
    	<ElementTimespan (275.0 to 275.0) <music21.meter.TimeSignature 3/4>>


.. code:: ipython3

    c = corpus.parse('7thRegimentReel')
    c.measures(0, 3).show()



.. image:: devTest_timespans_37_0.png
   :width: 674px
   :height: 160px


.. code:: ipython3

    c.measures(0, 6).show('braille')


.. parsed-literal::
   :class: ipython-result

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    ⠼⠚⠀⠣⠃⠐⠊⠮⠉⠽⠯⠐⠊⠙⠋⠀⠮⠨⠽⠯⠮⠙⠾⠉⠮⠀⠿⠊⠋⠊⠨⠽⠋⠊⠛
    ⠀⠀⠨⠯⠙⠚⠊⠿⠊⠋⠙⠀⠣⠃⠊⠐⠮⠉⠽⠯⠐⠊⠙⠋⠀⠮⠨⠽⠯⠮⠙⠾⠉⠮
    ⠀⠀⠨⠿⠊⠋⠊⠨⠽⠋⠛⠋