Overview#

This notebook gives a general overview of the features included in the dataset.

Hide imports 
import os
from collections import defaultdict, Counter
from fractions import Fraction

from git import Repo
import dimcat as dc
import ms3
import pandas as pd
import plotly.express as px
import plotly.graph_objects as go

from utils import CADENCE_COLORS, CORPUS_COLOR_SCALE, STD_LAYOUT, TYPE_COLORS, color_background, corpus_mean_composition_years, value_count_df, get_corpus_display_name, get_repo_name, print_heading, resolve_dir
Hide source 
CORPUS_PATH = os.path.abspath(os.path.join('..', '..'))
ANNOTATED_ONLY = os.getenv("ANNOTATED_ONLY", "True").lower() in ('true', '1', 't')
print_heading("Notebook settings")
print(f"CORPUS_PATH: {CORPUS_PATH!r}")
print(f"ANNOTATED_ONLY: {ANNOTATED_ONLY}")
CORPUS_PATH = resolve_dir(CORPUS_PATH)

Notebook settings
-----------------

CORPUS_PATH: '/home/runner/work/workflow_deployment/chopin_mazurkas'
ANNOTATED_ONLY: False
Hide source 
repo = Repo(CORPUS_PATH)
print_heading("Data and software versions")
print(f"Data repo '{get_repo_name(repo)}' @ {repo.commit().hexsha[:7]}")
print(f"dimcat version {dc.__version__}")
print(f"ms3 version {ms3.__version__}")

Data and software versions
--------------------------

Data repo 'chopin_mazurkas' @ bee29fb
dimcat version 0.3.0
ms3 version 2.5.2

dataset = dc.Dataset()
dataset.load(directory=CORPUS_PATH, parse_tsv=False)

[default|all]
All corpora
-----------
View: This view is called 'default'. It 
	- excludes pieces that are not contained in the metadata,
	- filters out file extensions requiring conversion (such as .xml), and
	- excludes review files and folders.

                     has   active   scores measures           notes        expanded          chords       
                metadata     view detected detected parsed detected parsed detected parsed detected parsed
corpus                                                                                                    
chopin_mazurkas      yes  default       55       55     55       55     55       55     55       55     55

385/1265 files are excluded from this view.

385 files have been excluded based on their subdir.

N = 55 annotated pieces, 220 parsed dataframes.
Hide data loading 
all_metadata = dataset.data.metadata()
assert len(all_metadata) > 0, "No pieces selected for analysis."
print(f"Metadata covers {len(all_metadata)} of the {dataset.data.count_pieces()} scores.")
all_notes = dataset.get_facet('notes')
all_measures = dataset.get_facet('measures')
mean_composition_years = corpus_mean_composition_years(all_metadata)
chronological_order = mean_composition_years.index.to_list()
corpus_colors = dict(zip(chronological_order, CORPUS_COLOR_SCALE))
corpus_names = {corp: get_corpus_display_name(corp) for corp in chronological_order}
chronological_corpus_names = list(corpus_names.values())
corpus_name_colors = {corpus_names[corp]: color for corp, color in corpus_colors.items()}

Metadata covers 55 of the 55 scores.

Composition dates#

This section relies on the dataset’s metadata.

valid_composed_start = pd.to_numeric(all_metadata.composed_start, errors='coerce')
valid_composed_end = pd.to_numeric(all_metadata.composed_end, errors='coerce')
print(f"Composition dates range from {int(valid_composed_start.min())} {valid_composed_start.idxmin()} "
      f"to {int(valid_composed_end.max())} {valid_composed_end.idxmax()}.")

Composition dates range from 1825 ('chopin_mazurkas', 'BI16-1') to 1849 ('chopin_mazurkas', 'BI167op67-2').

Mean composition years per corpus#

Hide source 
summary = all_metadata.copy()
summary.length_qb = all_measures.groupby(level=[0,1]).act_dur.sum() * 4.0
summary = pd.concat([summary,
                     all_notes.groupby(level=[0,1]).size().rename('notes'),
                    ], axis=1)
bar_data = pd.concat([mean_composition_years.rename('year'), 
                      summary.groupby(level='corpus').size().rename('pieces')],
                     axis=1
                    ).reset_index()
fig = px.bar(bar_data, x='year', y='pieces', color='corpus',
             color_discrete_map=corpus_colors,
            )
fig.update_traces(width=5)
fig.update_layout(**STD_LAYOUT)
fig.update_yaxes(gridcolor='lightgrey')
fig.update_traces(width=5)

Composition years histogram#

Hide source 
hist_data = summary.reset_index()
hist_data.corpus = hist_data.corpus.map(corpus_names)
fig = px.histogram(hist_data, x='composed_end', color='corpus',
                   labels=dict(composed_end='decade',
                               count='pieces',
                              ),
                   color_discrete_map=corpus_name_colors,
                  )
fig.update_traces(xbins=dict(
    size=10
))
fig.update_layout(**STD_LAYOUT)
fig.update_yaxes(gridcolor='lightgrey')
fig.show()

Dimensions#

Overview#

Hide source 
corpus_metadata = summary.groupby(level=0)
n_pieces = corpus_metadata.size().rename('pieces')
absolute_numbers = dict(
    measures = corpus_metadata.last_mn.sum(),
    length = corpus_metadata.length_qb.sum(),
    notes = corpus_metadata.notes.sum(),
    labels = corpus_metadata.label_count.sum(),
)
absolute = pd.DataFrame.from_dict(absolute_numbers)
absolute = pd.concat([n_pieces, absolute], axis=1)
sum_row = pd.DataFrame(absolute.sum(), columns=['sum']).T
absolute = pd.concat([absolute, sum_row])
relative = absolute.div(n_pieces, axis=0)
complete_summary = pd.concat([absolute, relative, absolute.iloc[:1,2:].div(absolute.measures, axis=0)], axis=1, keys=['absolute', 'per piece', 'per measure'])
complete_summary = complete_summary.apply(pd.to_numeric).round(2)
complete_summary.index = complete_summary.index.map(dict(corpus_names, sum='sum'))
complete_summary
absolute per piece per measure
pieces measures length notes labels pieces measures length notes labels length notes labels
Chopin Mazurkas 55 5089 14605.25 57201 9127 1.0 92.53 265.55 1040.02 165.95 2.87 11.24 1.79
sum 55 5089 14605.25 57201 9127 NaN NaN NaN NaN NaN NaN NaN NaN

Measures#

print(f"{len(all_measures.index)} measures over {len(all_measures.groupby(level=[0,1]))} files.")
all_measures.head()

4903 measures over 55 files.
mc mn quarterbeats duration_qb keysig timesig act_dur mc_offset numbering_offset dont_count barline breaks repeats next quarterbeats_all_endings volta markers jump_bwd jump_fwd play_until
corpus fname interval
chopin_mazurkas BI105-2op30-2 [0.0, 1.0) 1 0 0 1.0 2 3/4 1/4 1/2 <NA> 1 <NA> <NA> firstMeasure (2,) NaN <NA> NaN NaN NaN NaN
[1.0, 4.0) 2 1 1 3.0 2 3/4 3/4 0 <NA> <NA> <NA> <NA> <NA> (3,) NaN <NA> NaN NaN NaN NaN
[4.0, 7.0) 3 2 4 3.0 2 3/4 3/4 0 <NA> <NA> <NA> <NA> <NA> (4,) NaN <NA> NaN NaN NaN NaN
[7.0, 10.0) 4 3 7 3.0 2 3/4 3/4 0 <NA> <NA> <NA> <NA> <NA> (5,) NaN <NA> NaN NaN NaN NaN
[10.0, 13.0) 5 4 10 3.0 2 3/4 3/4 0 <NA> <NA> <NA> <NA> <NA> (6,) NaN <NA> NaN NaN NaN NaN 
print("Distribution of time signatures per XML measure (MC):")
all_measures.timesig.value_counts(dropna=False)

Distribution of time signatures per XML measure (MC):

3/4    4903
Name: timesig, dtype: int64

Harmony labels#

All symbols, independent of the local key (the mode of which changes their semantics).

try:
    all_annotations = dataset.get_facet('expanded')
except Exception:
    all_annotations = pd.DataFrame()
n_annotations = len(all_annotations.index)
includes_annotations = n_annotations > 0
if includes_annotations:
    display(all_annotations.head())
    print(f"Concatenated annotation tables contains {all_annotations.shape[0]} rows.")
    no_chord = all_annotations.root.isna()
    if no_chord.sum() > 0:
        print(f"{no_chord.sum()} of them are not chords. Their values are: {all_annotations.label[no_chord].value_counts(dropna=False).to_dict()}")
    all_chords = all_annotations[~no_chord].copy()
    print(f"Dataset contains {all_chords.shape[0]} tokens and {len(all_chords.chord.unique())} types over {len(all_chords.groupby(level=[0,1]))} documents.")
    all_annotations['corpus_name'] = all_annotations.index.get_level_values(0).map(get_corpus_display_name)
    all_chords['corpus_name'] = all_chords.index.get_level_values(0).map(get_corpus_display_name)
else:
    print(f"Dataset contains no annotations.")
mc mn quarterbeats quarterbeats_all_endings duration_qb mc_onset mn_onset timesig staff voice ... phraseend chord_type globalkey_is_minor localkey_is_minor chord_tones added_tones root bass_note volta pedalend
corpus fname interval
chopin_mazurkas BI105-2op30-2 [0.0, 4.0) 1 0 0 0 4.0 0 1/2 3/4 2 1 ... { m True True (0, -3, 1) () 0 0 <NA> NaN
[4.0, 7.0) 3 2 4 4 3.0 0 0 3/4 2 1 ... <NA> Mm7 True True (1, 5, 2, -1) () 1 1 <NA> NaN
[7.0, 10.0) 4 3 7 7 3.0 0 0 3/4 2 1 ... <NA> m True True (0, -3, 1) () 0 0 <NA> NaN
[10.0, 13.0) 5 4 10 10 3.0 0 0 3/4 2 1 ... <NA> m True True (1, -2, 2) () 1 1 <NA> NaN
[13.0, 16.0) 6 5 13 13 3.0 0 0 3/4 2 1 ... <NA> M True True (-4, 0, -3) () -4 -4 <NA> NaN

5 rows × 33 columns

Concatenated annotation tables contains 9086 rows.
129 of them are not chords. Their values are: {'{': 103, '}': 21, '|PAC}': 5}
Dataset contains 8957 tokens and 725 types over 55 documents.