Update app.py

app.py

@@ -118,22 +118,54 @@ NOTE_TO_MIDI = {'C': 60, 'Cs': 61, 'Db': 61, 'D': 62, 'Ds': 63, 'Eb': 63, 'E': 6
 MIDI_TO_NOTE = {60: 'C', 61: 'Db', 62: 'D', 63: 'Eb', 64: 'E', 65: 'F', 66: 'Gb', 67: 'G', 68: 'Ab', 69: 'A', 70: 'Bb', 71: 'B'}
 # 1. Expanded Dictionary with 7ths, 9ths, and extended chords
 CHORD_INTERVALS = {
-    'maj9': [0, 4, 7, 11, 14],
-    'min9': [0, 3, 7, 10, 14],
-    'add9': [0, 4, 7, 14],
-    'maj7': [0, 4, 7, 11],
-    'min7': [0, 3, 7, 10],
-    'dim7': [0, 3, 6, 9],
-    'sus4': [0, 5, 7],
-    'sus2': [0, 2, 7],
-    'aug':  [0, 4, 8],
-    'dim':  [0, 3, 6],
-    'maj':  [0, 4, 7],
-    'min':  [0, 3, 7],
-    '9':    [0, 4, 7, 10, 14], # Dominant 9
-    '7':    [0, 4, 7, 10],     # Dominant 7
-    'no3d': [0, 7],
-    '5':    [0, 7]
+    # --- 13ths ---
+    'maj13':  [0, 4, 7, 11, 14, 21], # Root, 3rd, 5th, Maj7, 9th, 13th
+    'min13':  [0, 3, 7, 10, 14, 21],
+    '13':     [0, 4, 7, 10, 14, 21], # Dominant 13
+    'add13':  [0, 4, 7, 21],
+    'madd13': [0, 3, 7, 21],
+
+    # --- 11ths ---
+    'maj11':  [0, 4, 7, 11, 14, 17], # Root, 3rd, 5th, Maj7, 9th, 11th
+    'min11':  [0, 3, 7, 10, 14, 17],
+    '11':     [0, 4, 7, 10, 14, 17], # Dominant 11
+    '7#11':   [0, 4, 7, 10, 18],     # Lydian Dominant flavor
+    'm711':   [0, 3, 7, 10, 17],     # Min7 add 11
+
+    # --- 9ths ---
+    'maj9':   [0, 4, 7, 11, 14],
+    'min9':   [0, 3, 7, 10, 14],
+    '9':      [0, 4, 7, 10, 14],     # Dominant 9
+    'add9':   [0, 4, 7, 14],
+    'madd9':  [0, 3, 7, 14],
+    '7b9':    [0, 4, 7, 10, 13],     # Altered Dominant (flat 9)
+    '7#9':    [0, 4, 7, 10, 15],     # The "Hendrix" Chord (sharp 9)
+
+    # --- 7ths ---
+    'maj7':   [0, 4, 7, 11],
+    'min7':   [0, 3, 7, 10],
+    '7':      [0, 4, 7, 10],         # Dominant 7
+    'dim7':   [0, 3, 6, 9],          # Fully diminished 7th
+    'm7b5':   [0, 3, 6, 10],         # Half-diminished 7th
+    'aug7':   [0, 4, 8, 10],         # Augmented 7th
+    'mmaj7':  [0, 3, 7, 11],         # Minor-Major 7th (James Bond chord)
+    '7sus4':  [0, 5, 7, 10],         # Dominant 7 suspended 4th
+
+    # --- 6ths ---
+    '6':      [0, 4, 7, 9],          # Major 6th
+    'm6':     [0, 3, 7, 9],          # Minor 6th
+
+    # --- Sus & Altered Triads ---
+    'sus4':   [0, 5, 7],             # Suspended 4th (replaces 3rd)
+    'sus2':   [0, 2, 7],             # Suspended 2nd (replaces 3rd)
+    'aug':    [0, 4, 8],             # Augmented triad
+    'dim':    [0, 3, 6],             # Diminished triad
+
+    # --- Standard Triads & Power Chords ---
+    'maj':    [0, 4, 7],
+    'min':    [0, 3, 7],
+    'no3d':   [0, 7],                # Power chord (from your dataset)
+    '5':      [0, 7]                 # Standard power chord notation
 }
 
 # Pre-sort keys by length (longest first) to prevent the "greedy" bug