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| import streamlit as st | |
| import numpy as np | |
| import time | |
| import pygame | |
| # Initialize Pygame mixer | |
| pygame.mixer.init() | |
| # Constants | |
| KEYS = ['C', 'C#', 'D', 'D#', 'E', 'F', 'F#', 'G', 'G#', 'A', 'A#', 'B'] | |
| OCTAVES = [3, 4, 5] | |
| BLUES_PROGRESSIONS = [ | |
| ['I', 'I', 'I', 'I', 'IV', 'IV', 'I', 'I', 'V', 'IV', 'I', 'V'], | |
| ['I', 'IV', 'I', 'I', 'IV', 'IV', 'I', 'I', 'V', 'IV', 'I', 'V'], | |
| ['I', 'I', 'I', 'I', 'IV', 'IV', 'I', 'I', 'V', 'V', 'I', 'V'], | |
| ['I', 'I', 'I', 'I', 'IV', 'IV', 'I', 'I', 'V', 'IV', 'I', 'I'], | |
| ['I', 'IV', 'I', 'V', 'IV', 'IV', 'I', 'V', 'IV', 'IV', 'I', 'V'], | |
| ] | |
| def note_to_freq(note): | |
| octave = int(note[-1]) | |
| key_index = KEYS.index(note[:-1]) | |
| return 440 * (2 ** ((key_index - 9) / 12 + (octave - 4))) | |
| def get_chord_notes(root, chord_type): | |
| root_index = KEYS.index(root) | |
| if chord_type == 'I': | |
| intervals = [0, 4, 7] | |
| elif chord_type == 'IV': | |
| intervals = [5, 9, 0] | |
| elif chord_type == 'V': | |
| intervals = [7, 11, 2] | |
| else: | |
| intervals = [0, 4, 7] | |
| return [KEYS[(root_index + interval) % len(KEYS)] for interval in intervals] | |
| def play_arpeggio(root, chord_type, tempo): | |
| chord_notes = get_chord_notes(root, chord_type) | |
| duration = 60 / tempo / 4 # 16th notes | |
| for note in chord_notes: | |
| freq = note_to_freq(f"{note}4") | |
| pygame.mixer.Sound(pygame.sndarray.make_sound( | |
| (np.sin(2 * np.pi * np.arange(44100) * freq / 44100) * 32767).astype(np.int16) | |
| )).play() | |
| time.sleep(duration) | |
| def main(): | |
| st.title("12-Bar Blues Arpeggio Game") | |
| # Sidebar for controls | |
| st.sidebar.header("Controls") | |
| root_key = st.sidebar.selectbox("Select Root Key", KEYS) | |
| tempo = st.sidebar.slider("Tempo (BPM)", 60, 240, 120) | |
| # Main area | |
| if 'blues_progression' not in st.session_state: | |
| st.session_state.blues_progression = BLUES_PROGRESSIONS[0] | |
| if 'current_bar' not in st.session_state: | |
| st.session_state.current_bar = 0 | |
| if 'chord_history' not in st.session_state: | |
| st.session_state.chord_history = [] | |
| # Display current progression | |
| st.write("Current 12-Bar Blues Progression:") | |
| progression_display = " ".join([f"**{chord}**" if i == st.session_state.current_bar else chord | |
| for i, chord in enumerate(st.session_state.blues_progression)]) | |
| st.markdown(progression_display) | |
| # Play/Stop button | |
| if st.button("Play/Stop 12-Bar Blues"): | |
| for i, chord in enumerate(st.session_state.blues_progression): | |
| if st.stop_button: | |
| break | |
| st.session_state.current_bar = i | |
| play_arpeggio(root_key, chord, tempo) | |
| st.session_state.chord_history.append(f"{root_key}{chord}") | |
| st.session_state.chord_history = st.session_state.chord_history[-12:] | |
| st.experimental_rerun() | |
| # Randomize button | |
| if st.button("Randomize Progression"): | |
| st.session_state.blues_progression = BLUES_PROGRESSIONS[np.random.randint(len(BLUES_PROGRESSIONS))] | |
| st.experimental_rerun() | |
| # Display chord history | |
| st.write("Chord History:") | |
| st.write(" ".join(st.session_state.chord_history)) | |
| if __name__ == "__main__": | |
| main() |