Create app.py

app.py

@@ -0,0 +1,91 @@
+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()