Update README.md

README.md

@@ -112,5 +112,66 @@ detailed_stats = TMIDIX.Tegridy_ms_SONG_to_MIDI_Converter(ms_MIDI_score,
 
 ***
 
+### Calculate MIDI score signature
+
+```python
+import TMIDIX
+
+def get_score_signature(midi_score):
+
+    score = []
+
+    time = 0
+    pt = 0
+    
+    for m in midi_score:
+
+        if 0 <= m < 128:
+            time = m
+
+        elif 256 < m < 384:
+            pitch = (m-256)
+
+            if time == pt:
+                score.append([0, pitch])
+            else:
+                score.append([time, pitch])
+
+            pt = time
+
+    chords = []
+    cho = []
+    
+    for s in score:
+        if s[0] == 0:
+            cho.append(s[1])
+
+        else:
+            if cho:
+                chords.append(cho)
+
+            cho = [s[1]]
+
+    pitches_chords = []
+
+    for c in chords:
+
+        if len(c) > 1:
+            
+            tones_chord = sorted(set([p % 12 for p in c]))
+    
+            while tones_chord not in TMIDIX.ALL_CHORDS_SORTED:
+                tones_chord = tones_chord[:-1]
+
+            pitches_chords.append(TMIDIX.ALL_CHORDS_SORTED.index(tones_chord)+128)
+
+        else:
+            pitches_chords.append(c[0])
+            
+    return list(Counter(pitches_chords).most_common())
+```
+
+***
+
 ### Project Los Angeles
 ### Tegridy Code 2024