python\u7f16\u66f2\u90e8\u5206\uff1a<\/strong><\/h2>\n\n\n\n\u4e00\u3001\u8ba4\u8bc6MIDO\u5e93<\/h2>\n\n\n\n1\u3001\u5bfc\u5165mido<\/h3>\n\n\n\n from mido import Message,MidiFile,MidiTrack<\/p>\n\n\n\n
2\u3001mido\u57fa\u672c\u6846\u67b6<\/h3>\n\n\n\n \u521b\u5efa\u4e24\u4e2amido\u5e93\u7684\u5bf9\u8c61\uff1aMidiFile() , MidiTrack()<\/p>\n\n\n\n
\u524d\u8005\u7528\u4e8e\u7f16\u8f91\u3001\u751f\u6210\u3001\u8f93\u51faMidi\u6587\u4ef6\uff0c\u540e\u8005\u7528\u4e8emidi\u6587\u4ef6\u8f68\u9053\u7f16\u8f91\u3002<\/p>\n\n\n\n
mid = MidiFile()\ntrack = MidiTrack()\nmid.tracks.append(track)<\/pre>\n\n\n\n\u5728\u8f68\u9053\u5bf9\u8c61\u4e2d\u6dfb\u52a0\u4fe1\u606f\uff0c’program_change’\u610f\u4e3a\u5207\u6362\u8f68\u9053\u3002<\/p>\n\n\n\n
\u76f4\u89c2\u7406\u89e3\u5c31\u662f\uff1a\u7f16\u8f91\u67d0\u6761\u8f68\u9053\u524d\u9700\u8981\u5148\u628a\u8f68\u9053\u9009\u597d\u3002\uff08\u6b64\u4e3a\u5b98\u65b9\u56fa\u5b9a\u5957\u8def\uff0c\u770b\u4e0d\u61c2\u4e5f\u65e0\u6240\u8c13\uff0c\u7167\u7740\u5199\u5373\u53ef\uff09<\/p>\n\n\n\n
track.append(Message('program_change', program=0, time=0))<\/pre>\n\n\n\n3\u3001\u7f16\u5199\u97f3\u7b26<\/h3>\n\n\n\n \u9009\u597d\u8f68\u9053\u4e4b\u540e\uff0c\u76f4\u63a5\u5728\u8f68\u9053\u4e0a\u6dfb\u52a0\u97f3\u7b26\u5373\u53ef\u3002\u6ce8\u610f\uff0c\u6b64\u5904\u7684\u65f6\u95f4\u5355\u4f4d\u662f\u6beb\u79d2\u3002<\/p>\n\n\n\n
track.append(Message('note_on', note=60, velocity=64, time=0))<\/pre>\n\n\n\n\u6dfb\u52a0\u5b8c\u540e\u518d\u6dfb\u52a0\u4e00\u6761\u7ed3\u675f\u6807\u8bb0\uff0c\u6b64\u5904\u624d\u7b97\u771f\u6b63\u5b8c\u6210\u4e00\u4e2a\u97f3\u7b26\u7684\u4e66\u5199\u3002<\/p>\n\n\n\n
track.append(Message('note_off', note=60, velocity=64, time=2000))<\/pre>\n\n\n\n\u6dfb\u52a0\u5b8c\u4ee5\u540e\uff0c\u5c31\u53ef\u4ee5\u76f4\u63a5\u751f\u6210\u4e00\u4e2amidi\u6587\u4ef6\u4e86<\/p>\n\n\n\n
mid.save('MyFirstDamnSong.mid')<\/pre>\n\n\n\n4\u3001\u4ee3\u7801<\/h3>\n\n\n\n \u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n\u4e8c\u3001\u7ed3\u5408\u4e50\u7406<\/h2>\n\n\n\n1\u3001midi\u6587\u4ef6\u9891\u7387\u7f16\u53f7\u8868\u683c\uff1a<\/h3>\n\n\n\n\u7531\u4e0a\u8868\u53ef\u77e5\uff0c\u4e2d\u592eC\u7684midi\u7f16\u53f7\u662f60 \u3002<\/p>\n\n\n\n
2\u3001\u7f16\u5199\u5de5\u5177\u5e93<\/h3>\n\n\n\n1\u3001\u4efb\u52a1\u5206\u6790<\/h3>\n\n\n\n \u6211\u4eec\u9996\u5148\u7f16\u5199\u4e00\u4e2a\u5de5\u5177\u5e93Notes_Toolbox.py\uff0c\u5b9a\u4e49\u4e00\u4e9b\u5e38\u7528\u7684\uff0c\u6839\u57fa\u7684\u4e1c\u897f\u3002<\/p>\n\n\n\n
\u5b9a\u4e49\u597d\u57fa\u7840\u7684\u4e1c\u897f\uff1a\u97f3\u7a0b\u3001\u97f3\u540d\u3001\u8c03\u5f0f\u3001\u548c\u5f26\u3001\u8282\u62cd\u3001\u57fa\u7840\u97f3\u7b49\u7b49\u3002<\/p>\n\n\n\n
\u7136\u540e\u7f16\u5199\u4e00\u4e9b\u7b80\u5355\u7684\u65b9\u6cd5\u4f9b\u8c03\u7528\uff0c\u6bd4\u5982\u8fd4\u56de\u4e00\u7ec4\u548c\u5f26\u3001\u81ea\u52a8\u8f6c\u8c03\u3001\u901a\u8fc7\u4e94\u7ebf\u8c31\u5f97\u5230MIDI\u9891\u7387\u7f16\u53f7\u7b49\u65b9\u6cd5\u3002<\/p>\n\n\n\n
2\u3001\u5b9a\u4e49\u53d8\u91cf<\/h3>\n\n\n\n\u7f16\u53f7<\/td> \u53d8\u91cf\u540d<\/td> Is static\uff1f<\/td> Default value<\/td> \u4f5c\u7528<\/td><\/tr> 1<\/td> bpm<\/td> No<\/td> 125<\/td> \u8282\u62cd<\/td><\/tr> 2<\/td> timePerBeat<\/td> No<\/td> 60 \/ bpm * 100<\/td> \u6bcf\u62cd\u6301\u7eed\u65f6\u95f4\uff08\u6beb\u79d2\uff09<\/td><\/tr> 3<\/td> base_note<\/td> static<\/td> 60<\/td> \u4e2d\u592eC\u5bf9\u5e94MIDI\u7f16\u53f7<\/td><\/tr> 4<\/td> note_name[]<\/td> static<\/td> [ ‘C’,’D’,’E’,’F’,’G’,’A’,’B’]<\/td> \u97f3\u540d<\/td><\/tr> 5<\/td> major_notes[]<\/td> static<\/td> [0, 2, 2, 1, 2, 2, 2, 1]<\/td> \u81ea\u7136\u97f3\u9636<\/td><\/tr> 6<\/td> Cmajor_notes[]<\/td> static<\/td> <\/td> <\/td><\/tr> 7<\/td> Eflatmajor_notes[]<\/td> static<\/td> <\/td> <\/td><\/tr> 8<\/td> Cmajor{}<\/td> static<\/td> {‘C’: 60, ‘D’: 62, ‘E’: 64, ‘F’: 65, ‘G’: 67, ‘A’: 69, ‘B’: 71}<\/td> C\u5927\u8c03\u5b57\u5178<\/td><\/tr> 9<\/td> Eflatmajor{}<\/td> static<\/td> {‘C’: 63, ‘D’: 65, ‘E’: 67, ‘F’: 68, ‘G’: 70, ‘A’: 72, ‘B’: 74}<\/td> E\u5c0f\u8c03\u5b57\u5178<\/td><\/tr> …<\/td> …<\/td> …<\/td> …<\/td> …<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n3\u3001\u5b9a\u4e49\u51fd\u6570<\/h3>\n\n\n\n\u7f16\u53f7<\/td> \u65b9\u6cd5\u540d<\/td> \u8fd4\u56de<\/td> \u4f20\u5165\u53c2\u6570<\/td> \u4f5c\u7528<\/td><\/tr> 1<\/td> get_note<\/td> MIDI\u7f16\u53f7<\/td> note,group=0,**kw<\/td> \u8f93\u5165\u97f3\u540d\u4e0e\u97f3\u7b26\u533a\u57df\uff0c\u8fd4\u56de\u5bf9\u5e94\u7684MIDI\u7f16\u53f7\u3002\uff08\u9700\u8981\u6539\u8fdb\uff0c\u6ca1\u6709\u9ed1\u952e\uff09<\/td><\/tr> 2<\/td> get_chord<\/td> \u548c\u5f26\u6570\u7ec4<\/td> name\uff0c**kw<\/td> \u8f93\u5165\u548c\u5f26\u540d\u79f0\uff0c\u8fd4\u56de\u548c\u5f26\u6570\u7ec4<\/td><\/tr> 3<\/td> originToEflatMajor<\/td> \u65b0E\u5c0f\u8c03MIDI\u7f16\u53f7\u6570\u7ec4<\/td> list,**kw<\/td> \u8f93\u5165C\u5927\u8c03\uff0c\u8fd4\u56deE\u5c0f\u8c03\u3002\uff08\u9700\u8981\u6539\u8fdb\uff0c\u652f\u6301\u6307\u5b9a\u4ec0\u4e48\u8c03\u5230\u4ec0\u4e48\u8c03\uff09<\/td><\/tr> …<\/td> …<\/td> …<\/td> …<\/td> …<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nbpm = 125 #why 125:\n #bpm = 1 * 1000 \/ 8 \ntimePerBeat = 60 \/ bpm * 1000\nbase_note = 60 # C4\nnote_name =[\n 'C','D','E','F','G','A','B'\n]\n\nmajor_notes = [0, 2, 2, 1, 2, 2, 2, 1]\nCmajor_notes = []\nEflatmajor_notes = []\n\nfor num in range(12):\n Cmajor_notes.append(base_note+sum(major_notes[0:num+1]))\n Eflatmajor_notes.append(base_note+3+sum(major_notes[0:num+1]))\n#\u8fd9\u91cc\u53ea\u6709\u4e00\u4e2a\u533a\nCmajor = dict(zip(note_name,Cmajor_notes))\n# Cmajor = {'C':60,'D':62,'E':64,'F':65,'G':67,'A':69,'B':71}\nEflatmajor = dict(zip(note_name,Eflatmajor_notes))\n# Eflatmajor = {'C': 63, 'D': 65, 'E': 67, 'F': 68, 'G': 70, 'A': 72, 'B': 74}\n\ndef get_note(note,group=0,**kw):#Group = 0 means 4Group\n global base_note,major_notes\n return base_note + group*12 + sum(major_notes[0,note])\n\ndef originToEflatMajor(list,**kw):\n Ef=[]\n for x in list:\n Ef.append(x+3)\n return Ef\n\n#get_note(1,group=0) return 60\n#get_note(2,group=0) return 62\ndef get_chord(name):\n chord = {\n \"Major3\":[0,4,7,12],#\u5927\u4e09\u548c\u5f26\n \"Minor3\":[0,3,7,12],#\u5c0f\u4e09\u548c\u5f26\n \"Augmented3\":[0,4,8,12],#\u589e\u4e09\u548c\u5f26\n \"Diminished3\":[0,3,6,12],#\u51cf\u4e09\u548c\u5f26\n\n \"M7\":[0,4,7,11],#\u5927\u4e03\u548c\u5f26\n \"Mm7\":[0,4,7,10],#\u5c5e\u4e03\u548c\u5f26\n \"m7\":[0,3,7,10],#\u5c0f\u4e03\u548c\u5f26\n \"mM7\":[],\n #...\n }\n return chord[name]\n#get_chord(\u201cMajor\u201d) return [0,4,7,12]<\/pre>\n\n\n\n3\u3001\u5199\u4e00\u6bb5\u5206\u89e3\u548c\u5f26<\/h3>\n\n\n\n \u4e0a\u9762\u5df2\u7ecf\u5199\u5b8c\u4e86\u5de5\u5177\u7c7b\u6a21\u5757\uff0c\u63a5\u4e0b\u6765\u5c31\u53ef\u4ee5\u4e13\u6ce8\u4e8e\u548c\u5f26\u7684\u90e8\u5206\u4e86\u3002<\/p>\n\n\n\n
1\u3001\u7f16\u5199\u8f93\u51fa\u548c\u5f26\u51fd\u6570<\/h3>\n\n\n\n \u8f93\u51fa\u5206\u89e3\u548c\u5f26\u5230midi\u6587\u4ef6<\/p>\n\n\n\n
\u4f7f\u7528\u6b64\u65b9\u6cd5\u65f6\uff0c\u9700\u8981\u4f20\u5165\uff1a<\/p>\n\n\n\n\u7f16\u53f7<\/td> \u53c2\u6570\u540d\uff1a<\/td> \u4f20\u5165\uff1a<\/td> \u793a\u4f8b\uff1a<\/td><\/tr> 1<\/td> track<\/td> mido\u5e93\u7684\u8f93\u51fa\u97f3\u9891\u63a5\u53e3<\/td> MidiTrack()<\/td><\/tr> 2<\/td> root<\/td> \u97f3\u7b26\u7684\u540d\u79f0<\/td> ‘C’,’D’,’E’,’F’,’G’,’A’,’B’<\/td><\/tr> 3<\/td> name<\/td> \u548c\u5f26\u7684\u540d\u79f0\uff0c\u5728Notes_Toolbox\u4e2d\u5b9a\u4e49<\/td> ‘Major3’…<\/td><\/tr> 4<\/td> format<\/td> \u8f93\u51fa\u5206\u89e3\u548c\u5f26\u7684\u65b9\u5f0f<\/td> [0,1,2] [1,3,2,3]…<\/td><\/tr> 5<\/td> length<\/td> \u97f3\u7b26\u6301\u7eed\u7684\u65f6\u957f<\/td> 4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n\u76f4\u63a5\u653e\u4e0a\u6e90\u4ee3\u7801\uff1a<\/p>\n\n\n\n
def add_broken_chord(root, name, format, length, track, tone_name='Cmajor', root_base=0, channel=0):\n #\u9ed8\u8ba4\u662fc\u5927\u8c03\n root_num = Notes_Toolbox.Cmajor\n if tone_name == 'Eflat':\n root_num = {'C': 63, 'D': 65, 'E': 67, 'F': 68, 'G': 70, 'A': 72, 'B': 74}\n root_note = root_num[root] + root_base*12 # \u5206\u89e3\u548c\u5f26\u7684\u6839\u97f3\n\n time = (length * 480) \/ len(format) # \u6b64\u5904\u4e3a\u5b98\u65b9\u6587\u6863\u5199\u6cd5\uff0c\u6211\u4e5f\u4e0d\u61c2\uff0ctime\u6307\u7684\u662f\u97f3\u7b26\u6301\u7eed\u65f6\u957f\n for broken_chord in format: # \u901a\u8fc7for\u5faa\u73af\uff0c\u9010\u4e2a\u8f93\u51fa\u548c\u5f26\u7684\u97f3\u7b26\n note = root_note + Notes_Toolbox.get_chord(name)[broken_chord]\n track.append(Message('note_on', note=note,\n velocity=60, time=0, channel=channel))\n track.append(Message('note_on', note=note, velocity=60,\n time=round(time), channel=channel))<\/pre>\n\n\n\n
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