team-7

team-7/generator.py

@@ -0,0 +1,85 @@
+'''
+Requires Musescore and timidity 
+'''
+
+import random
+import os
+import sys
+from subprocess import call
+
+from music21 import note, stream, instrument
+
+VALID_NOTES = [i+k+str(j)  for j in [3,4,5] for i in 'abcdefg' for k in ['', '#']]
+
+KEYS = {
+        'c-major':
+    [
+        {'c', 'e', 'g'},
+        {'d', 'f', 'a'},
+        {'e', 'g', 'b'},
+        {'f', 'a', 'c'},
+        {'g', 'b', 'd'},
+        {'a', 'c', 'e'},
+    ]
+}
+
+def progression(key, bars=8):
+    first = None
+    for bar in range(bars):
+        if bar == bars - 1:
+            chord = first
+        else:
+            chord = random.choice(KEYS[key])
+        if first is None:
+            first = chord
+        yield chord
+
+def notes(prog):
+    for bar in prog:
+        beats = 0
+        while beats < 4:
+            n = random.choice(VALID_NOTES)
+            while n[:-1] not in bar:
+                n = random.choice(VALID_NOTES)
+            beats += 1
+            yield note.Note(n)
+
+def random_score(key='c-major'):
+    meas1 = stream.Measure()
+    meas2 = stream.Measure()
+    prog = list(progression(key))
+    n1 = notes(prog)
+    n2 = notes(prog)
+    for curr_note1, curr_note2 in zip(n1, n2):
+        meas1.append(curr_note1)
+        meas2.append(curr_note2)
+        print (curr_note1, curr_note2),
+
+    score = stream.Score()
+
+    part1 = stream.Part()
+    part1.insert(instrument.Piano())
+    part1.append(meas1)
+    score.append(part1)
+
+    part2 = stream.Part()
+    part2.insert(instrument.Viola())
+    part2.append(meas2)
+    score.append(part2)
+
+    return score
+
+if __name__ == '__main__':
+    filename = sys.argv[1]
+
+    random_score().write(fp="{}.xml".format(filename))
+
+    # Musescore to convert xml to midi
+    call(["mscore", "{}.xml".format(filename), "-o", "{}.mid".format(filename)])
+
+    # Musescore to convert xml to midi
+    call(["mscore", "{}.xml".format(filename), "-o", "{}.pdf".format(filename)])
+
+    # Play with Timidity
+    call(["timidity", "{}.mid".format(filename)])
+

team-7/requirements.txt

@@ -0,0 +1 @@
+music21==2.0.0