mirror of
https://github.com/kennethreitz/pytheory.git
synced 2026-06-05 14:50:18 +00:00
Rewrite song.py with 7 playable songs and chord progressions
Melodies: Twinkle Twinkle, Ode to Joy, Happy Birthday, Fur Elise Progressions: Pop I-V-vi-IV, 12-bar blues in A, Jazz ii-V-I turnaround Interactive menu for picking songs. Clean helper functions for melody and chord progression playback. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
+192
-63
@@ -1,78 +1,207 @@
|
||||
from time import sleep
|
||||
"""Play melodies and chord progressions with PyTheory.
|
||||
|
||||
from pytheory import TonedScale, Tone, CHARTS, play
|
||||
Requires PortAudio: brew install portaudio (macOS)
|
||||
"""
|
||||
|
||||
from pytheory import Tone, Chord, Key, TonedScale, play, Synth
|
||||
|
||||
# ── Helpers ─────────────────────────────────────────────────────────────
|
||||
|
||||
BPM = 120
|
||||
BEAT = 60_000 // BPM # ms per beat
|
||||
|
||||
|
||||
# Add this constant at the top of the file, after the imports
|
||||
EIGHTH_NOTE = 0.25
|
||||
QUARTER_NOTE = 0.5
|
||||
|
||||
# Add scale definition after the constants
|
||||
C_MAJOR = TonedScale(tonic="C4")
|
||||
def play_melody(notes, synth=Synth.SINE):
|
||||
"""Play a sequence of (note_string, beats) tuples."""
|
||||
for note, beats in notes:
|
||||
if note == "REST":
|
||||
import time
|
||||
time.sleep(beats * BEAT / 1000)
|
||||
else:
|
||||
tone = Tone.from_string(note, system="western")
|
||||
play(tone, synth=synth, t=int(beats * BEAT))
|
||||
|
||||
|
||||
def play_note(note, t=0.1):
|
||||
# Convert scale degree (1-7) to note name (0-based index)
|
||||
scale_notes = ["C4", "D4", "E4", "F4", "G4", "A4", "B4"]
|
||||
note_name = scale_notes[note - 1] # Subtract 1 because scale degrees are 1-based
|
||||
tone = Tone(note_name)
|
||||
play(tone, t=t * 1_000)
|
||||
sleep(t)
|
||||
def play_progression(chords, beats_each=2, synth=Synth.TRIANGLE):
|
||||
"""Play a list of Chord objects."""
|
||||
for chord in chords:
|
||||
name = chord.identify() or "?"
|
||||
tones = " ".join(t.full_name for t in chord.tones)
|
||||
print(f" {name:20s} {tones}")
|
||||
play(chord, synth=synth, t=int(beats_each * BEAT))
|
||||
|
||||
|
||||
# Twinkle Twinkle Little Star in C major
|
||||
# C C G G A A G (first line)
|
||||
# F F E E D D C (second line)
|
||||
# G G F F E E D (third line)
|
||||
# G G F F E E D (fourth line)
|
||||
# C C G G A A G (fifth line)
|
||||
# F F E E D D C (sixth line)
|
||||
# ── Songs ───────────────────────────────────────────────────────────────
|
||||
|
||||
def twinkle_twinkle():
|
||||
"""Twinkle Twinkle Little Star — C major."""
|
||||
print("Twinkle Twinkle Little Star")
|
||||
print("=" * 40)
|
||||
|
||||
def play_twinkle():
|
||||
# Define the patterns using scale degrees instead of note names
|
||||
line1 = [
|
||||
(1, EIGHTH_NOTE), # C4
|
||||
(1, EIGHTH_NOTE), # C4
|
||||
(5, EIGHTH_NOTE), # G4
|
||||
(5, EIGHTH_NOTE), # G4
|
||||
(6, EIGHTH_NOTE), # A4
|
||||
(6, EIGHTH_NOTE), # A4
|
||||
(5, QUARTER_NOTE), # G4
|
||||
]
|
||||
line2 = [
|
||||
(4, EIGHTH_NOTE), # F4
|
||||
(4, EIGHTH_NOTE), # F4
|
||||
(3, EIGHTH_NOTE), # E4
|
||||
(3, EIGHTH_NOTE), # E4
|
||||
(2, EIGHTH_NOTE), # D4
|
||||
(2, EIGHTH_NOTE), # D4
|
||||
(1, QUARTER_NOTE), # C4
|
||||
]
|
||||
line3 = [
|
||||
(5, EIGHTH_NOTE), # G4
|
||||
(5, EIGHTH_NOTE), # G4
|
||||
(4, EIGHTH_NOTE), # F4
|
||||
(4, EIGHTH_NOTE), # F4
|
||||
(3, EIGHTH_NOTE), # E4
|
||||
(3, EIGHTH_NOTE), # E4
|
||||
(2, QUARTER_NOTE), # D4
|
||||
melody = [
|
||||
# Twinkle twinkle little star
|
||||
("C4", 1), ("C4", 1), ("G4", 1), ("G4", 1),
|
||||
("A4", 1), ("A4", 1), ("G4", 2),
|
||||
# How I wonder what you are
|
||||
("F4", 1), ("F4", 1), ("E4", 1), ("E4", 1),
|
||||
("D4", 1), ("D4", 1), ("C4", 2),
|
||||
# Up above the world so high
|
||||
("G4", 1), ("G4", 1), ("F4", 1), ("F4", 1),
|
||||
("E4", 1), ("E4", 1), ("D4", 2),
|
||||
# Like a diamond in the sky
|
||||
("G4", 1), ("G4", 1), ("F4", 1), ("F4", 1),
|
||||
("E4", 1), ("E4", 1), ("D4", 2),
|
||||
# Twinkle twinkle little star
|
||||
("C4", 1), ("C4", 1), ("G4", 1), ("G4", 1),
|
||||
("A4", 1), ("A4", 1), ("G4", 2),
|
||||
# How I wonder what you are
|
||||
("F4", 1), ("F4", 1), ("E4", 1), ("E4", 1),
|
||||
("D4", 1), ("D4", 1), ("C4", 2),
|
||||
]
|
||||
|
||||
# Construct the full melody using the patterns
|
||||
melody = (
|
||||
line1 # Twinkle twinkle little star
|
||||
+ line2 # How I wonder what you are
|
||||
+ line3 # Up above the world so high
|
||||
+ line3 # Like a diamond in the sky
|
||||
+ line1 # Twinkle twinkle little star
|
||||
+ line2 # How I wonder what you are
|
||||
)
|
||||
play_melody(melody)
|
||||
|
||||
print("Playing Twinkle Twinkle Little Star...")
|
||||
for note, duration in melody:
|
||||
play_note(note, duration)
|
||||
|
||||
def ode_to_joy():
|
||||
"""Ode to Joy — Beethoven's 9th Symphony, D major."""
|
||||
print("Ode to Joy (Beethoven)")
|
||||
print("=" * 40)
|
||||
|
||||
melody = [
|
||||
# Main theme
|
||||
("F#4", 1), ("F#4", 1), ("G4", 1), ("A4", 1),
|
||||
("A4", 1), ("G4", 1), ("F#4", 1), ("E4", 1),
|
||||
("D4", 1), ("D4", 1), ("E4", 1), ("F#4", 1),
|
||||
("F#4", 1.5), ("E4", 0.5), ("E4", 2),
|
||||
# Repeat with variation
|
||||
("F#4", 1), ("F#4", 1), ("G4", 1), ("A4", 1),
|
||||
("A4", 1), ("G4", 1), ("F#4", 1), ("E4", 1),
|
||||
("D4", 1), ("D4", 1), ("E4", 1), ("F#4", 1),
|
||||
("E4", 1.5), ("D4", 0.5), ("D4", 2),
|
||||
]
|
||||
|
||||
play_melody(melody)
|
||||
|
||||
|
||||
def happy_birthday():
|
||||
"""Happy Birthday — G major."""
|
||||
print("Happy Birthday")
|
||||
print("=" * 40)
|
||||
|
||||
melody = [
|
||||
# Happy birthday to you
|
||||
("G4", 0.75), ("G4", 0.25), ("A4", 1), ("G4", 1),
|
||||
("C5", 1), ("B4", 2),
|
||||
# Happy birthday to you
|
||||
("G4", 0.75), ("G4", 0.25), ("A4", 1), ("G4", 1),
|
||||
("D5", 1), ("C5", 2),
|
||||
# Happy birthday dear [name]
|
||||
("G4", 0.75), ("G4", 0.25), ("G5", 1), ("E5", 1),
|
||||
("C5", 1), ("B4", 1), ("A4", 2),
|
||||
# Happy birthday to you
|
||||
("F5", 0.75), ("F5", 0.25), ("E5", 1), ("C5", 1),
|
||||
("D5", 1), ("C5", 2),
|
||||
]
|
||||
|
||||
play_melody(melody)
|
||||
|
||||
|
||||
def fur_elise():
|
||||
"""Fur Elise — opening bars (A minor)."""
|
||||
print("Fur Elise (opening)")
|
||||
print("=" * 40)
|
||||
|
||||
melody = [
|
||||
("E5", 0.5), ("D#5", 0.5), ("E5", 0.5), ("D#5", 0.5),
|
||||
("E5", 0.5), ("B4", 0.5), ("D5", 0.5), ("C5", 0.5),
|
||||
("A4", 1), ("REST", 0.5),
|
||||
("C4", 0.5), ("E4", 0.5), ("A4", 0.5),
|
||||
("B4", 1), ("REST", 0.5),
|
||||
("E4", 0.5), ("G#4", 0.5), ("B4", 0.5),
|
||||
("C5", 1), ("REST", 0.5),
|
||||
("E4", 0.5), ("E5", 0.5), ("D#5", 0.5),
|
||||
("E5", 0.5), ("D#5", 0.5), ("E5", 0.5), ("B4", 0.5),
|
||||
("D5", 0.5), ("C5", 0.5),
|
||||
("A4", 1),
|
||||
]
|
||||
|
||||
play_melody(melody)
|
||||
|
||||
|
||||
def pop_progression():
|
||||
"""The I–V–vi–IV pop progression in C major."""
|
||||
print("Pop Progression (I-V-vi-IV in C)")
|
||||
print("=" * 40)
|
||||
print()
|
||||
|
||||
key = Key("C", "major")
|
||||
chords = key.progression("I", "V", "vi", "IV")
|
||||
|
||||
# Play it twice
|
||||
play_progression(chords * 2)
|
||||
|
||||
|
||||
def blues_in_a():
|
||||
"""12-bar blues in A."""
|
||||
print("12-Bar Blues in A")
|
||||
print("=" * 40)
|
||||
print()
|
||||
|
||||
key = Key("A", "major")
|
||||
I = key.triad(0)
|
||||
IV = key.triad(3)
|
||||
V = key.triad(4)
|
||||
|
||||
bars = [I, I, I, I, IV, IV, I, I, V, IV, I, V]
|
||||
|
||||
play_progression(bars, beats_each=1.5)
|
||||
|
||||
|
||||
def jazz_ii_v_i():
|
||||
"""Jazz ii–V–I turnaround through several keys."""
|
||||
print("Jazz ii-V-I Turnaround")
|
||||
print("=" * 40)
|
||||
print()
|
||||
|
||||
for tonic in ["C", "F", "Bb", "Eb"]:
|
||||
key = Key(tonic, "major")
|
||||
chords = key.progression("ii", "V", "I")
|
||||
print(f" Key of {tonic}:")
|
||||
play_progression(chords, beats_each=1.5)
|
||||
print()
|
||||
|
||||
|
||||
# ── Main ────────────────────────────────────────────────────────────────
|
||||
|
||||
SONGS = {
|
||||
"1": ("Twinkle Twinkle Little Star", twinkle_twinkle),
|
||||
"2": ("Ode to Joy", ode_to_joy),
|
||||
"3": ("Happy Birthday", happy_birthday),
|
||||
"4": ("Fur Elise (opening)", fur_elise),
|
||||
"5": ("Pop Progression (I-V-vi-IV)", pop_progression),
|
||||
"6": ("12-Bar Blues in A", blues_in_a),
|
||||
"7": ("Jazz ii-V-I Turnaround", jazz_ii_v_i),
|
||||
}
|
||||
|
||||
if __name__ == "__main__":
|
||||
play_twinkle()
|
||||
print("PyTheory Song Player")
|
||||
print("=" * 40)
|
||||
print()
|
||||
|
||||
for key, (name, _) in SONGS.items():
|
||||
print(f" {key}. {name}")
|
||||
|
||||
print()
|
||||
choice = input("Pick a song (1-7, or 'all'): ").strip()
|
||||
|
||||
if choice == "all":
|
||||
for _, (_, fn) in SONGS.items():
|
||||
fn()
|
||||
print()
|
||||
elif choice in SONGS:
|
||||
SONGS[choice][1]()
|
||||
else:
|
||||
print("Playing all melodies...")
|
||||
for _, (_, fn) in SONGS.items():
|
||||
fn()
|
||||
print()
|
||||
|
||||
Reference in New Issue
Block a user