Got rid of depreciated flat method in music21, added file type processing, fixed using dataframe attributes to new system

.gitignore

@@ -0,0 +1,199 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
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+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
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+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
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+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
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+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
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+.spyderproject
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+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be added to the global gitignore or merged into this project gitignore.  For a PyCharm
+#  project, it is recommended to use the project-specific .gitignore file.
+.idea/
+
+# VS Code
+.vscode/
+*.code-workspace
+
+# macOS
+.DS_Store
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+
+# Windows
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+*.stackdump
+[Dd]esktop.ini
+$RECYCLE.BIN/
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+*.lnk
+
+# Project-specific ignores
+# Generated CSV output directories
+*-output-csvs/
+*-output-csvs-output-midis/
+
+# Temporary files
+*.tmp
+*.temp
+
+# Audio/MIDI files (optional - uncomment if you don't want to track these)
+# *.mid
+# *.midi
+# *.wav
+# *.mp3
+# *.flac

midi_to_csv.py

@@ -50,16 +50,20 @@ def main():
 
 	for file in os.listdir(input_dir):
 		filename = os.fsdecode(file)
+		# Skip directories and non-MIDI files
+		file_path = os.path.join(args.input_dir_name, filename)
+		if os.path.isdir(file_path) or not filename.endswith(".mid"):
+			continue
 		print("Processing " + filename + " in to " + filename[:-4] + ".csv")
-		assert filename.endswith(".mid"), "files must be midi files"
 		mf = music21.midi.MidiFile()
 		mf.open(args.input_dir_name + "/" + filename)
 		mf.read()
 		mf.close()
-		s = music21.midi.translate.midiFileToStream(mf, quantizePost=False).flat #quantize is what rounds all note durations to real music note types, not needed for our application
+		s = music21.midi.translate.midiFileToStream(mf, quantizePost=False).flatten() #quantize is what rounds all note durations to real music note types, not needed for our application
 		# Convert chords in to notes. 
 		# TODO: consider chords as separate objects from notes? Everything's in music21 anyways
 		df = pd.DataFrame(columns=["note_name", "start_time", "duration", "velocity", "tempo"])
+		note_data = []  # Collect data first, then create DataFrame at once
 		for g in s.recurse().notes:
 			#print(g)
 			if g.isChord:
@@ -78,14 +82,15 @@ def main():
 			if note.isNote:
 				# print(note.offset)
 				# print(note.duration)
-				new_df = pd.DataFrame([[note.pitch, round(float(note.offset), 3), round(note.duration.quarterLength, 3), note.volume.velocity, note_tempo]], columns=["note_name", "start_time", "duration", "velocity", "tempo"])
-
-				df = df.append(new_df, ignore_index=True)
+				note_data.append([note.pitch, round(float(note.offset), 3), round(note.duration.quarterLength, 3), note.volume.velocity, note_tempo])
 
 				#print(df)
 				#print(new_df)
 				#print(note)
 
+		# Create DataFrame from collected data
+		df = pd.DataFrame(note_data, columns=["note_name", "start_time", "duration", "velocity", "tempo"])
+
 		#print(df)
 		df.to_csv(output_dir_name + "/" + filename[:-4] + ".csv")