src/songs/Song.py

   1 '''
   2 Created on 2 oct. 2009
   3
   4 @author: samsam
   5 '''
   6 import pickle
   7 import os.path
   8 try :
   9     from MidiToSong import MidiToSong
  10     from mxmMidi.MidiInFile import MidiInFile
  11 except ImportError :
  12     # loadSongFromMidi KO dans ce cas.
  13     pass
  14
  15 class Song:
  16     '''
  17     classdocs
  18     '''
  19
  20
  21     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"):
  22         '''
  23         Constructor
  24         '''
  25         self.name = name
  26         self.scale = scale
  27         self.notes = notesInExtendedScale
  28         self.lyrics = lyrics
  29         self.noteLengths = noteLengths
  30         self.quarterNoteLength = quarterNoteLength
  31         if midiNoteNumbers == None :
  32             self.midiNoteNumbers = [self.scale[note] for note in self.notes]
  33         else:
  34             self.midiNoteNumbers = midiNoteNumbers
  35             if self.notes == [] :
  36                 self.assignNotesFromMidiNoteNumbers()
  37         self.requiresExtendedScale = requiresExtendedScale
  38         if alterationIndexes != None and alterations != None :
  39             self.alterNotes(alterationIndexes, alterations)
  40         if modulationIndexes != None and modulationScales != None :
  41             self.modulate(modulationIndexes, modulationScales)
  42
  43     def getSongIterator(self):
  44         while True:
  45             for i in range(len(self.notes)):
  46                 if self.lyrics :
  47                     lyrics = self.lyrics[i]
  48                 else :
  49                     lyrics = None
  50
  51                 if self.noteLengths :
  52                     noteLength = self.noteLengths[i]
  53                 else :
  54                     noteLength = 1
  55
  56                 yield [self.notes[i],self.midiNoteNumbers[i],lyrics,noteLength]
  57
  58     def alterNotes(self,noteIndexes,alterations):
  59         for i in range(len(noteIndexes)) :
  60             self.midiNoteNumbers[noteIndexes[i]] = self.midiNoteNumbers[noteIndexes[i]] + alterations[i]
  61
  62     def modulate(self,modulationIndexes,scales):
  63         for i in range(len(scales)):
  64             if i < len(scales)-1 :
  65                 bound = modulationIndexes[i+1]
  66             else :
  67                 bound = len(self.notes)
  68             for j in range(modulationIndexes[i],bound):
  69                 self.midiNoteNumbers[j]=scales[i][self.notes[j]]
  70
  71     def assignNotesFromMidiNoteNumbers(self):
  72         for i in range(len(self.midiNoteNumbers)):
  73             noteInExtendedScale = 0
  74             while self.midiNoteNumbers[i] > self.scale[noteInExtendedScale] and noteInExtendedScale < len(self.scale)-1:
  75                 noteInExtendedScale += 1
  76             if self.midiNoteNumbers[i]<self.scale[noteInExtendedScale]:
  77                 noteInExtendedScale -= 1
  78             self.notes.append(noteInExtendedScale)
  79
  80     def save(self,path = None):
  81         if path == None :
  82             path = "".join(os.path.join("smwis",self.name),".swmi")
  83         f = file(path, 'w')
  84         pickler = pickle.Pickler(f)
  85         pickler.dump(self)
  86         f.close()
  87
  88 def loadSongFromMidi(filePath,scale):
  89     # get data
  90     test_file = '../songs/midis/test.mid'
  91     f = open(test_file, 'rb')
  92
  93     # do parsing
  94     mts = MidiToSong()
  95     midiIn = MidiInFile(mts, f)
  96     midiIn.read()
  97     f.close()
  98
  99     s = Song(scale,midiNoteNumbers = mts.midiNoteNumbers,quarterNoteLength = mts.quarterNoteLength,noteLengths = mts.noteLengths)
 100     for nn in s.notes :
 101         if nn < 3 :
 102             s.requiresExtendedScale = True
 103     return(s)
 104
 105 def loadSong(filePath):
 106     f = file(filePath, 'r')
 107     unpickler = pickle.Unpickler(f)
 108     s = unpickler.load()
 109     f.close()
 110     return(s)
 111
 112 if __name__ == '__main__':
 113
 114     # get data
 115     test_file = '../songs/midis/boheme.mid'
 116     f = open(test_file, 'rb')
 117
 118     # do parsing
 119     from mxmMidi.MidiInFile import MidiInFile
 120     mts = MidiToSong()
 121     midiIn = MidiInFile(mts, f)
 122     midiIn.read()
 123     f.close()
 124
 125     majorScale = [55, 57, 59, 60, 62, 64, 65, 67, 69, 71, 72]
 126
 127     s = Song(majorScale,requiresExtendedScale = True, midiNoteNumbers = mts.midiNoteNumbers,quarterNoteLength = mts.quarterNoteLength,noteLengths = mts.noteLengths)
 128     for i in range(len(s.midiNoteNumbers)):
 129         print "note number :" + str(s.midiNoteNumbers[i]) + ", assigned note :" + str(s.notes[i]) + ", duration :" + str(s.noteLengths[i])
 130
 131     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"]
 132
 133     #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"]
 134
 135     #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"]
 136
 137     #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"]
 138
 139     # 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"]
 140
 141     s.save("smwis/boheme.smwi")