1 #!/usr/bin/env python 1 #!/usr/bin/env python 2 2 3 from __future__ import division 3 from __future__ import division 4 import ipdb | 4 #import ipdb 5 import os 5 import os 6 import random 6 import random 7 import sys 7 import sys 8 import time 8 import time 9 9 10 from midiutil.MidiFile import MIDIFile as midifile 10 from midiutil.MidiFile import MIDIFile as midifile 11 import parse 11 import parse ................................................................................................................................................................................ 18 mymidi = midifile(15) 18 mymidi = midifile(15) 19 19 20 def main(): 20 def main(): 21 composition = { 21 composition = { 22 "intro": { 22 "intro": { 23 "body": { 23 "body": { 24 "lead_instr": { # Instrument 'melody' 24 "lead_instr": { # Instrument 'melody' 25 "channel": 6, | 25 "channel": 8, 26 "octave": 4, | 26 "octave": 5, 27 "duration": 30, | 27 "duration": 60, 28 "grammars": { # Notes for this instrument to use in this pi 28 "grammars": { # Notes for this instrument to use in this pi 29 "u": ["A/2, B/2, C/2 D/2 (u)", "D2' D2' D2' D2' (x)"], | 29 "u": ["C2' B2 A3 D3 B C' D C2' z (u)", "C2' C2' C2' C2' 30 "v": ["C/2 C/2 C/2 C/2 (w)"], | 30 "v": ["G2 F2 E2 F2 D5 (u)", "B/4 C/4' B/4 A/4 D2 z"], 31 "w": ["E/2 F/2 E/2 F/2 (u)"], < 32 "x": ["z4 (v)"], 31 "x": ["z4 (v)"], 33 }, 32 }, 34 }, 33 }, 35 "follow_instr": { # Instrument 'bass' 34 "follow_instr": { # Instrument 'bass' 36 "channel": 4, 35 "channel": 4, 37 "sync": "lead_instr", 36 "sync": "lead_instr", 38 "octave": 2, 37 "octave": 2, 39 "duration": 30, | 38 "duration": 60, 40 "grammars": { # Notes for this instrument to use in this pi 39 "grammars": { # Notes for this instrument to use in this pi 41 "u": ["E F G E (v)"], | 40 "u": ["C/2 C/2 C/2 z/2 (u)"], 42 "v": ["G A A A (e)", "G A A A (v)"], < 43 "e": ["B A G A (u)"], < 44 "x": ["z4 (e)"], < > 41 }, > 42 }, > 43 }, > 44 }, > 45 "section1": { > 46 "body": { > 47 "lead_instr": { # Instrument 'melody' > 48 "channel": 6, > 49 "octave": 5, > 50 "duration": 60, > 51 "grammars": { # Notes for this instrument to use in this pi > 52 "u": ["C E A F G z (u)", "C E A F G z (v)"], > 53 "v": ["A/2 D/2 G/2 C/2 | F/2 B/2 E/2 z/2 | (u)"], > 54 }, > 55 }, > 56 "follow_instr": { # Instrument 'bass' > 57 "channel": 4, > 58 "sync": "lead_instr", > 59 "octave": 2, > 60 "duration": 60, > 61 "grammars": { # Notes for this instrument to use in this pi > 62 "u": ["C/2 C/2 C/2 z/2 (u)"], 45 }, 63 }, 46 }, 64 }, 47 }, 65 }, 48 }, 66 }, 49 } 67 } 50 print '''f1 0 512 10 1 < 51 f2 0 8192 10 .24 .64 .88 .76 .06 .5 .34 .08 < 52 f3 0 1025 10 1 < 53 t 0 60 < 54 ''' < 55 68 56 section_start = 0 69 section_start = 0 57 for section in ["intro"]: | 70 for section in ["intro", "section1"]: 58 print "; Section " + section | 71 print "Section " + section 59 subsection_start = section_start 72 subsection_start = section_start 60 section = composition[section] 73 section = composition[section] 61 for subsection in ["intro", "body", "outro"]: 74 for subsection in ["intro", "body", "outro"]: 62 try: 75 try: 63 print "; Subsection " + subsection | 76 print "Subsection " + subsection 64 subsection = section[subsection] 77 subsection = section[subsection] 65 78 66 unordered_instrs = [] 79 unordered_instrs = [] 67 for instr in subsection: 80 for instr in subsection: 68 subsection[instr]["name"] = instr 81 subsection[instr]["name"] = instr 69 if not "sync" in subsection[instr].keys(): 82 if not "sync" in subsection[instr].keys(): 70 subsection[instr]["sync"] = None 83 subsection[instr]["sync"] = None ................................................................................................................................................................................ 72 ordered_instrs = topsort.topsort(unordered_instrs) 85 ordered_instrs = topsort.topsort(unordered_instrs) 73 ordered_instrs.remove(None) # None used as a placeholder for so 86 ordered_instrs.remove(None) # None used as a placeholder for so 74 87 75 instrs = [] 88 instrs = [] 76 syncs = {} 89 syncs = {} 77 track = 0 90 track = 0 78 for instr in ordered_instrs: 91 for instr in ordered_instrs: 79 print ";Instrument " + instr | 92 print "Instrument " + instr 80 instr = subsection[instr] 93 instr = subsection[instr] 81 max_time = instr["duration"] 94 max_time = instr["duration"] 82 instr_score, syncs = render_instr(instr, syncs, max_time) 95 instr_score, syncs = render_instr(instr, syncs, max_time) 83 instrs.append(instr_score) 96 instrs.append(instr_score) 84 midify_instr_score(instr_score, track, instr["channel"], sub 97 midify_instr_score(instr_score, track, instr["channel"], sub 85 longest_score = max(instrs, key=lambda i: score_len(i)) 98 longest_score = max(instrs, key=lambda i: score_len(i)) 86 subsection_start += score_len(longest_score) 99 subsection_start += score_len(longest_score) ................................................................................................................................................................................ 136 grammar = sync_node 149 grammar = sync_node 137 else: 150 else: 138 grammar = random.choice(time_filtered_grammars.keys()) 151 grammar = random.choice(time_filtered_grammars.keys()) 139 if score is None: 152 if score is None: 140 grammar = random.choice(time_filtered_grammars.keys()) 153 grammar = random.choice(time_filtered_grammars.keys()) 141 elif instr["sync"] is None: 154 elif instr["sync"] is None: 142 grammar = get_next_node(score); 155 grammar = get_next_node(score); > 156 if grammar not in instr["grammars"].keys(): > 157 raise Exception("You tried to direct a grammar to a node that doesn' 143 phrases = time_filtered_grammars[grammar] 158 phrases = time_filtered_grammars[grammar] 144 if instr["name"] not in syncs.keys(): 159 if instr["name"] not in syncs.keys(): 145 syncs[instr["name"]] = [] 160 syncs[instr["name"]] = [] 146 syncs[instr["name"]].append({"node": grammar, "time": current_time}) 161 syncs[instr["name"]].append({"node": grammar, "time": current_time}) 147 162 148 return random.choice(phrases), syncs 163 return random.choice(phrases), syncs 149 164