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import streamlit as st
import matplotlib.pyplot as plt
import numpy as np
# Define the key map
KEY_MAP = {
'C': 0, 'C#': 1, 'D': 2, 'D#': 3, 'E': 4, 'F': 5, 'F#': 6, 'G': 7, 'G#': 8, 'A': 9, 'A#': 10, 'B': 11
}
# Define the octave range
OCTAVE_RANGE = range(-1, 8)
# Define the key colors
WHITE_KEY_COLOR = 'white'
BLACK_KEY_COLOR = 'black'
# Define the key labels
KEY_LABELS = ['C', 'C#', 'D', 'D#', 'E', 'F', 'F#', 'G', 'G#', 'A', 'A#', 'B']
# Define the chord annotations
CHORD_ANNOTATIONS = [
"Chord players, sing lyrics while reading music chords",
"Pace in 12 or 3/4 steps with rhythm"
]
def draw_keyboard():
fig, ax = plt.subplots(figsize=(16, 4))
ax.set_facecolor('black')
ax.set_xticks([])
ax.set_yticks([])
key_width = 0.8
key_height = 3
key_spacing = 0.2
for octave in OCTAVE_RANGE:
for i, key in enumerate(KEY_LABELS):
x = (i + (octave * 12)) * (key_width + key_spacing)
y = 0
if i in [1, 3, 6, 8, 10]:
rect = plt.Rectangle((x, y), key_width, key_height * 0.6, facecolor=BLACK_KEY_COLOR)
ax.add_patch(rect)
else:
rect = plt.Rectangle((x, y), key_width, key_height, facecolor=WHITE_KEY_COLOR, edgecolor='black')
ax.add_patch(rect)
if octave >= 0:
ax.text(x + 0.2, 0.5, f"{key}{octave}", fontsize=12, fontweight='bold')
for i, annotation in enumerate(CHORD_ANNOTATIONS):
ax.text(1, key_height * (1.2 + i * 0.3), annotation, fontsize=12, fontweight='bold', color='white')
ax.set_aspect('equal')
st.pyplot(fig)
st.title("88-Key Keyboard Model")
draw_keyboard() |