Editing Music of the 20th Century (section)

== <span style="color: #FFFFFF;">Applying</span> ==
'''Modeling 'The 12-Tone Row' (Ensuring no note is repeated too soon):'''
<syntaxhighlight lang="python">
import random

def generate_12_tone_row():
    """
    Schoenberg's rule: Use all 12 notes once before repeating.
    """
    notes = ["C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B"]
    # Shuffle them to create a 'Row'
    random.shuffle(notes)
    return " - ".join(notes)

# Every time you run this, you get a 'Modernist' melody.
print(f"Schoenberg Row: {generate_12_tone_row()}")
</syntaxhighlight>

; 20th Century Landmarks
: '''The Rite of Spring (1913)''' → The "Big Bang" of modern music. It was so loud and "Primal" that people in the audience started fighting each other.
: '''Rhapsody in Blue (1924)''' → The moment "Jazz" entered the concert hall, proving that American folk music was as sophisticated as European classical.
: '''Einstein on the Beach (1976)''' → Philip Glass's 5-hour minimalist opera that has no plot and consists of people counting numbers over and over.
: '''Poème Électronique (1958)''' → Edgard Varèse's piece that was played through 400 speakers at the World's Fair, launching the era of "Spatial Audio."
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