add VELOCITY_DICT and offset in Clip

daobei.py

@@ -0,0 +1,25 @@
+from musing import MusingRhythm,Clip
+r = '.. - -|--- -|- - - -|-- - -|-- - -|- - - -|-'
+mr = MusingRhythm(r,unit_time=1.8)
+m = ['G5','B5',\
+'C6','E6' , \
+'F6','G6','B6','C7',
+'G6','B6','C7',\
+'F6','E6','F6', \
+'D6','C6','B5','D6',\
+'C6']
+# 3
+
+# for i in range(1,7):
+#     Clip(mr,m,offset=i).play()
+# c = Clip(mr,m,offset=3)
+c = Clip(mr,m)
+c.init_last_time(start = 0.9)
+c.add_column_chords("G4M",beat_time=1.8,velocity=15)
+c.add_column_chords("C5M",beat_time=1.8,velocity=15)
+c.add_column_chords("F5M",beat_time=1.8,velocity=15)
+c.add_column_chords("G5M",beat_time=1.8,velocity=15)
+c.add_column_chords("F5M",beat_time=1.8,velocity=15)
+c.add_column_chords("D5M",beat_time=1.8,velocity=15)
+c.add_column_chords("C5M",beat_time=1.8,velocity=15)
+c.play()

musing/musing.py

@@ -17,8 +17,18 @@
               'dim7', 'maj7', 'aug7', 'sus2', 'sus4']
 MINUTE = 60.00000
 DEFAULT_MIDI_FILE = 'midi_data/40126.mid'
+STRONG = 36
+SUB_STRONG = 27
+WEAK = 18
 DEFAULT_VELOCITY = 36
-
+VELOCITY_DICT = {
+    1:[36],
+    2:[36,18],
+    3:[36,18,18],
+    4:[36,18,27,18],
+    5:[36,18,27,18,18],
+    6:[36,18,18,27,18,18],
+}
 
 class Musing(object):
     '''
@@ -349,7 +359,10 @@ class Clip(object):
 
     last_time = 0.0
 
-    def __init__(self, rhythms=False, notes=False, velocity_list=[], start_time=.0):
+    def init_last_time(self,start = 0.0):
+        self.last_time  = start
+
+    def __init__(self, rhythms=False, notes=False, velocity_list=[], start_time=.0, default_velocity=True,offset=0):
 
         self.midi = Musing()
 
@@ -367,7 +380,7 @@ def __init__(self, rhythms=False, notes=False, velocity_list=[], start_time=.0):
 
         for rhythm, note in zip(rhythms, notes):
             note = pretty_midi.Note(
-                velocity=DEFAULT_VELOCITY, pitch=pretty_midi.note_name_to_number(note), start=start_time + rhythm[0], end=start_time + rhythm[1])
+                velocity=rhythm[2] if default_velocity else DEFAULT_VELOCITY, pitch=pretty_midi.note_name_to_number(note)-offset, start=start_time + rhythm[0], end=start_time + rhythm[1])
             self.note_list.append(note)
 
     def add_notes(self, notes=False, start_time=.0):
@@ -391,15 +404,14 @@ def play(self):
     def last(self,time):
         self.last_time += time
 
-    def  add_column_chords(self,note_list,beat_time=1.0,p='5'):
+    def  add_column_chords(self,note_list,beat_time=1.0,p='5',velocity=SUB_STRONG,repeat=2):
 
         if isinstance(note_list,basestring):
 
             note_list = Musing.parse_chord(note_list)
-
-            for note in note_list:
-
-                self.note_list.append(pretty_midi.Note( velocity=DEFAULT_VELOCITY, pitch=pretty_midi.note_name_to_number("%s%s" % (note,p)), start= self.last_time, end=self.last_time + beat_time))
+            for repeat_div in range(0,repeat):
+                for note in note_list:
+                    self.note_list.append(pretty_midi.Note( velocity=velocity-3*repeat_div, pitch=pretty_midi.note_name_to_number("%s%s" % (note,p)), start= self.last_time+beat_time/float(repeat)*repeat_div, end=self.last_time + beat_time/float(repeat)*repeat_div))
 
         elif isinstance(note_list,list):
 
@@ -468,6 +480,7 @@ def __repr__(self):
 
     def __iter__(self):
         return self.time_list.__iter__()
+
     def __len__(self):
         return len(self.time_list)
 
@@ -498,13 +511,13 @@ def parse_rhythm_bar(self, rhythm_bar, now_time, unit_time=.5):
         s_list = []
 
         unit = unit_time / float(t)
-
-        for r in r_list:
+        
+        for index,r in enumerate(r_list):
 
             if '-' in r:
                 start_time = now_time[0]
                 last_time = len(r) * unit
-                m_list.append((start_time, last_time + start_time))
+                m_list.append((start_time, last_time + start_time,VELOCITY_DICT.get(t,[27,27,27,27,27,27,27,27,27])[index]))
                 now_time[0] += last_time
             elif '.' in r:
                 start_time = now_time[0]