src/songs/Song.py

   1 '''
   2 Created on 2 oct. 2009
   3
   4 @author: samsam
   5 '''
   6 import pickle
   7 import os.path
   8 from MidiToSong import MidiToSong
   9 from mxmMidi.MidiInFile import MidiInFile
  10
  11 class Song:
  12     '''
  13     classdocs
  14     '''
  15
  16
  17     def __init__(self,scale,notesInExtendedScale=[], requiresExtendedScale = False,midiNoteNumbers = None, alterationIndexes = None, alterations = None, modulationIndexes = None, modulationScales = None, lyrics =None, noteLengths = None, quarterNoteLength = 750, name = "unknownSong"):
  18         '''
  19         Constructor
  20         '''
  21         self.name = name
  22         self.scale = scale
  23         self.notes = notesInExtendedScale
  24         self.lyrics = lyrics
  25         self.noteLengths = noteLengths
  26         self.quarterNoteLength = quarterNoteLength
  27         if midiNoteNumbers == None :
  28             self.midiNoteNumbers = [self.scale[note] for note in self.notes]
  29         else:
  30             self.midiNoteNumbers = midiNoteNumbers
  31             if self.notes == [] :
  32                 self.assignNotesFromMidiNoteNumbers()
  33         self.requiresExtendedScale = requiresExtendedScale
  34         if alterationIndexes != None and alterations != None :
  35             self.alterNotes(alterationIndexes, alterations)
  36         if modulationIndexes != None and modulationScales != None :
  37             self.modulate(modulationIndexes, modulationScales)
  38
  39     def getSongIterator(self):
  40         while True:
  41             for i in range(len(self.notes)):
  42                 if self.lyrics :
  43                     lyrics = self.lyrics[i]
  44                 else :
  45                     lyrics = None
  46
  47                 if self.noteLengths :
  48                     noteLength = self.noteLengths[i]
  49                 else :
  50                     noteLength = 1
  51
  52                 yield [self.notes[i],self.midiNoteNumbers[i],lyrics,noteLength]
  53
  54     def alterNotes(self,noteIndexes,alterations):
  55         for i in range(len(noteIndexes)) :
  56             self.midiNoteNumbers[noteIndexes[i]] = self.midiNoteNumbers[noteIndexes[i]] + alterations[i]
  57
  58     def modulate(self,modulationIndexes,scales):
  59         for i in range(len(scales)):
  60             if i < len(scales)-1 :
  61                 bound = modulationIndexes[i+1]
  62             else :
  63                 bound = len(self.notes)
  64             for j in range(modulationIndexes[i],bound):
  65                 self.midiNoteNumbers[j]=scales[i][self.notes[j]]
  66
  67     def assignNotesFromMidiNoteNumbers(self):
  68         for i in range(len(self.midiNoteNumbers)):
  69             noteInExtendedScale = 0
  70             while self.midiNoteNumbers[i] > self.scale[noteInExtendedScale] and noteInExtendedScale < len(self.scale)-1:
  71                 noteInExtendedScale += 1
  72             if self.midiNoteNumbers[i]<self.scale[noteInExtendedScale]:
  73                 noteInExtendedScale -= 1
  74             self.notes.append(noteInExtendedScale)
  75
  76     def save(self,path = None):
  77         if path == None :
  78             path = "".join(os.path.join("smwis",self.name),".swmi")
  79         f = file(path, 'w')
  80         pickler = pickle.Pickler(f)
  81         pickler.dump(self)
  82         f.close()
  83
  84 def loadSongFromMidi(filePath,scale):
  85     # get data
  86     test_file = '../songs/midis/test.mid'
  87     f = open(test_file, 'rb')
  88
  89     # do parsing
  90     mts = MidiToSong()
  91     midiIn = MidiInFile(mts, f)
  92     midiIn.read()
  93     f.close()
  94
  95     s = Song(scale,midiNoteNumbers = mts.midiNoteNumbers,quarterNoteLength = mts.quarterNoteLength,noteLengths = mts.noteLengths)
  96     for nn in s.notes :
  97         if nn < 3 :
  98             s.requiresExtendedScale = True
  99     return(s)
 100
 101 def loadSong(filePath):
 102     f = file(filePath, 'r')
 103     unpickler = pickle.Unpickler(f)
 104     s = unpickler.load()
 105     f.close()
 106     return(s)
 107
 108 if __name__ == '__main__':
 109
 110     # get data
 111     test_file = '../songs/midis/boheme.mid'
 112     f = open(test_file, 'rb')
 113
 114     # do parsing
 115     from mxmMidi.MidiInFile import MidiInFile
 116     mts = MidiToSong()
 117     midiIn = MidiInFile(mts, f)
 118     midiIn.read()
 119     f.close()
 120
 121     majorScale = [55, 57, 59, 60, 62, 64, 65, 67, 69, 71, 72]
 122
 123     s = Song(majorScale,requiresExtendedScale = True, midiNoteNumbers = mts.midiNoteNumbers,quarterNoteLength = mts.quarterNoteLength,noteLengths = mts.noteLengths)
 124     for i in range(len(s.midiNoteNumbers)):
 125         print "note number :" + str(s.midiNoteNumbers[i]) + ", assigned note :" + str(s.notes[i]) + ", duration :" + str(s.noteLengths[i])
 126
 127     s.lyrics = ["je","vous","par-","-le","d'un","temps","que","les","moins","de","vingt","ans","ne","peu-","-vent","pas","con-","-nai-","-tre","Mont-","-martre","en","ce","temps","la","ac-","-cro-","-chait","ses","li-","-las","jus-","-que","sous","nos","fe-","-netres","et","si","l'hum-","-ble","gar-","-ni","qui","nous","ser-","-vait","de","nid","ne","pay-","-yait","pas","de","mi-","-ne","c'est","la","qu'on","s'est","con-","-nus","moi","qui","cri-","-ait","fa-","-mine","et","toi","qui","po-","-sait","nue","la","bo-","-he-","-me","la","bo-","-he-","-me","ca","vou-","-lait","dire","on","est","heu-","-reux","la","bo-","-he-","-me","la","bo-","-he-","-me","nous","ne","man-","-gions","qu'un","jour","sur","deux"]
 128
 129     #s.lyrics = ["quand","nous","chan-","-te-","-rons","le","temps","des","ce-","-rises","et","gai","ros-","-si-","-gnol","et","mer-","-le","mo-","-queur","se-","-ront","tous","en","fe-","-e-","-te","les","bel-","-les","au-","-ront","la","fo-","-lie","en","te","te","et","les","a-","-mou-","-reux","du","so-","-leil","au","coeur","quand","vous","chan-","-te-","-rez","le","temps","des","ce-","-rises","sif-","-fle-","-ra","bien","mieux","le","mer-","-le","mo-","-queur"]
 130
 131     #s.lyrics=["il","pleut","il","pleut","ber-","-ge-","-re","ren-","-tre","tes","blancs","mou-","-tons","al-","-lons","a","ma","chau-","-mie-","-re","ber-","-ge-","-re","vite","al-","-lons","j'en-","-tends","sur","le","feu-","-illa-","-ge","l'eau","qui","tombe","a","grand","bruit","voi-","-ci","ve-","-nir","l'o-","-ra-","-a-","-ge","voi-","-ci","l'e-","-clair","qui","luit"]
 132
 133     #s.lyrics = ["c'est","une","chan-","-son","qui","nous","res-","-sem-","-ble","toi","tu","m'ai-","-mais","et","je","t'ai-","-mais","nous","e-","-tions","tout","les","deux","en-","-sem-","-ble","toi","qui","m'ai-","-mais","moi","qui","t'ai-","-mais","mais","la","vie","se-","-pare","ceux","qui","s'aiment","tout","dou-","-ce-","-ment","sans","faire","de","bruit","et","la","mer","ef-","-fa-","-ce","sur","le","sa-","-ble","les","pas","des","a-","-mants","de-","-su-","-nis"]
 134
 135     # s.lyrics = ["quand","il","me","prend","dans","ses","bras","qu'il","me","par-","-le","tout","bas","je","vois","la","vie","en","ro-","-se","il","me","dit","des","mots","d'a-","-mour","des","mots","de","tous","les","jours","et","ca","m'fait","quel-","-que","cho-","-se","il","est","en-","-tre","dans","mon","coeur","u-","-ne","part","de","bon-","-heur","dont","je","con-","-nais","la","cau-","-se","c'est","lmui","pour","moi","moi","pour","lui","dans","la","vie","il","m'a","pro-","-mis","m'a","ju-","-re","pour","la","vie","et","des","que","je","l'a-","-per-","-cois","a-","-lors","je","sens","en","moi","mon","coeur","qui","bat"]
 136
 137     s.save("smwis/boheme.smwi")