Index: cfg.py ================================================================== --- cfg.py +++ cfg.py @@ -1,15 +1,19 @@ #!/usr/bin/env python from __future__ import division import os +import pdb import random import sys import time -random.seed(time.time()) import parse +import tree + +random.seed(time.time()) + def main(): key = "A" bps = 60/60 tempo = 1/bps max_duration = 1 @@ -19,72 +23,100 @@ "melody": { # Instrument 'melody' "score_line": "i2 %(time)f %(duration)f 7000 %(octave)d.%(note)s 2", "octave": 8, "duration": 40, "grammars": { # Notes for this instrument to use in this piece - "u": ["C G/2 G/2 G/2 C B, F' C F C B F"], + "u": ["C G/2 G/2 G/2 C B, F' C F C B F (u)"], # "w": ['E/4 A/4 D/4 G/4 F/4 F/4 B2'], }, "score": "u u", }, }, } - - max_t = 0 # max time encountered so far. Used for movement timing - progression = "overview" -# progression = "zelda1" - for comp_name in progression.split(): - comp_start_time = max_t - for instr_name, instr in composition[comp_name].iteritems(): - generated_score = generate_score(instr["score"], instr["grammars"]) # Fill in the scores by generating them based on the grammars -# print generated_score - print generated_score - score = parse.parse(generated_score, default_octave=instr["octave"]) # Return Node/Chord objects - - # Generate timestamps for the notes - t = comp_start_time - for note in range(len(score)): - score[note].time = t - score[note].duration *= tempo - t += score[note].duration -# print "time difference =", t-comp_start_time -# print "instrument duration =",composition[comp_name][instr_name]["duration"] - if (t-comp_start_time) > float(composition[comp_name][instr_name]["duration"]): -# print "here" - score = score[:note] - break - max_t = t if t > max_t else max_t - composition[comp_name][instr_name]["score"] = score - - # Must be done after all note times keyed in, else you can't coordinate melodies with the rhythm chords print '''f1 0 512 10 1 f2 0 8192 10 .24 .64 .88 .76 .06 .5 .34 .08 f3 0 1025 10 1 ''' - for comp_name in progression.split(): - print "; Movement:", comp_name - for instr_name, instr in composition[comp_name].iteritems(): -# composition[comp_name][instr_name]["score"] = transliterate_score(composition[comp_name][instr_name]["score"], key) -# print "\nMovement %s instrument %s" % (comp_name, instr_name) -# print composition[comp_name][instr_name]["score"] - final_score = generate_csound_score(composition[comp_name][instr_name]["score"], composition[comp_name][instr_name]["score_line"]) - for line in final_score: - print line - - -def make_scale(key): - notes = ["A", "A#", "B", "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#"] - scale = [key] - pos = notes.index(key) - progression = [2,2,1,2,2,2,1] - for p in progression: - pos = (pos + p) % 12 - scale.append(notes[pos]) - return scale - + movement_start = 0 + + + max_t = 0 # max time encountered so far. Used for movement timing + progression = "overview" + for comp_name in progression.split(): + comp_start_time = max_t + # We need an arbitrary grammar from this instrument to start the score with + max_instr = 0 + movement_start += max_instr + for instr_name, instr in composition[comp_name].iteritems(): + for grammar in instr["grammars"]: + for g in range(len(instr["grammars"][grammar])): + instr["grammars"][grammar][g] = parse.parse(instr["grammars"][grammar][g], default_octave=instr["octave"]) + g = random.choice(instr["grammars"].keys()) + ins_score = random.choice(instr["grammars"][g]) +# ins_score = instr["grammars"][g] + score_complete = False + while score_complete is False: + if score_len(ins_score) >= 50: + score_complete = True + break + for i in range(len(ins_score)): + if isinstance(ins_score[i], tree.Tree): + unrolled_score = select_node(instr["grammars"][ins_score[i].name]) + new_score = ins_score[:i-1] + unrolled_score + ins_score[i+i:] + ins_score = new_score + if i == len(ins_score): + score_complete = True + break + + + ins_score = [n for n in ins_score if not isinstance(n, tree.Tree)] + composition[comp_name][instr_name]["score"] = ins_score + + # Generate timestamps for the notes +# t = comp_start_time +# for note in range(len(ins_score)): +# ins_score[note].time = t +# ins_score[note].duration *= tempo +# t += score[note].duration +## print "time difference =", t-comp_start_time +## print "instrument duration =",composition[comp_name][instr_name]["duration"] +# if (t-comp_start_time) > float(composition[comp_name][instr_name]["duration"]): +## print "here" +# ins_score = ins_score[:note] +# break +# max_t = t if t > max_t else max_t +# composition[comp_name][instr_name]["score"] = ins_score + + # Must be done after all note times keyed in, else you can't coordinate melodies with the rhythm chords +# for comp_name in progression.split(): +# print "; Movement:", comp_name +# for instr_name, instr in composition[comp_name].iteritems(): +## print "\nMovement %s instrument %s" % (comp_name, instr_name) +## print composition[comp_name][instr_name]["score"] +# final_score = generate_csound_score(composition[comp_name][instr_name]["score"], composition[comp_name][instr_name]["score_line"]) +# for line in final_score: +# print line + + if score_len(ins_score) > max_instr: + max_instr = ins_score + for line in generate_csound_score(composition[comp_name][instr_name]["score"], instr["score_line"], movement_start): + print line + + +def score_len(score): + total = 0 + for n in score: + if not isinstance(n, tree.Tree): + total += n.duration + return total + +def select_node(grammar): + return random.choice(grammar) + def generate_score(score, grammars): + pdb.set_trace() while 1: found_substitution = False for key,value in grammars.iteritems(): if score.find(key) != -1: found_substitution = True @@ -97,42 +129,12 @@ return score if found_substitution is False: break return score -def transliterate_score(score, key): - scale = make_scale(key) - scale_conversion = { - "I": 1, - "II": 2, - "III": 3, - "IV": 4, - "V": 5, - "VI": 6, - "VII": 7, - "VIII": 8, - } - keyed_score = [] - for i in range(len(score)): - if isinstance(score[i], parse.Note): - score[i].value = scale[scale_conversion[score[i].value]-1] - elif isinstance(score[i], parse.Chord): - chord = [] - root_note_index = scale.index(key) + scale_conversion[score[i].value] - chord.append(scale[root_note_index]) - chord.append(scale[(root_note_index+3) % 8]) - if score[i].chord_type == "m": # Minor chords, flat the 5th - chord.append(scale[(root_note_index+4) % 8]) - else: - chord.append(scale[(root_note_index+5) % 8]) - score[i].chord = chord - elif isinstance(score[i], parse.Rest): - pass - return score - - -def generate_csound_score(score, score_line): + +def generate_csound_score(score, score_line, t): csound_note_values = { "C": "00", "C#": "01", "D": "02", "D#": "03", @@ -144,17 +146,19 @@ "A": "09", "A#": "10", "B": "11", } csound_score = [] + pdb.set_trace() for token in score: if isinstance(token, parse.Chord): # Chords for note in token.chord: note = csound_note_values[note] - csound_score.append(score_line % {"time": token.time, "octave": token.octave, "note": note, "duration": token.duration}) + csound_score.append(score_line % {"time": t, "octave": token.octave, "note": note, "duration": token.duration}) elif isinstance(token, parse.Note): # Individual notes note = csound_note_values[token.value] - csound_score.append(score_line % {"time": token.time, "octave": token.octave, "note": note, "duration": token.duration}) + csound_score.append(score_line % {"time": t, "octave": token.octave, "note": note, "duration": token.duration}) + t += token.duration return csound_score if __name__ == "__main__": main()