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}
print '''f1 0 512 10 1
f2 0 8192 10 .24 .64 .88 .76 .06 .5 .34 .08
f3 0 1025 10 1
t 0 60
'''
start = 0
section_start = 0
for section in ["verse1", "verse2"]:
section = composition[section]
# for subsection in section
instrs = []
for instr in section.values():
sync = None
max_time = instr["duration"]
instr_score = render_instr(instr, sync, max_time)
instrs.append(instr_score)
for line in generate_csound_score(instr_score, instr["score_line"], start):
for line in generate_csound_score(instr_score, instr["score_line"], section_start):
print line
longest_score = max(instrs, key=lambda i: score_len(i))
start = score_len(longest_score)
section_start += score_len(longest_score)
def render_instr(instr, sync, max_time):
grammars = instr["grammars"]
for g in instr["grammars"]:
for i in range(len(grammars[g])):
grammars[g][i] = parse.parse(grammars[g][i])
init_node = random.choice(instr["grammars"].keys())
init_score = random.choice(instr["grammars"][init_node])
score = init_score
while True:
time_remaining = max_time - score_len(score)
try:
score = choose_node(score, grammars, time_remaining)
score = choose_node(score, grammars, time_remaining, sync)
except ValueError:
break
return score
def choose_node(score, grammars, time_remaining):
def choose_node(score, grammars, time_remaining, sync):
if time_remaining <= 0:
raise ValueError("No time remaining in the score")
node = None
node_index = None
for item in range(len(score)):
if isinstance(score[item], tree.Tree):
node = score[item].name
node_index = item
if node is None:
raise ValueError("No more nodes to fill in")
options = []
for g in range(len(grammars[node])):
if score_len(grammars[node][g]) <= time_remaining:
options.append(grammars[node][g])
if len(options) == 0:
raise ValueError("No available grammars that will fit in the score")
if sync:
else:
phrase = random.choice(options)
phrase = random.choice(options)
score = score[:node_index-1] + phrase + score[node_index+1:]
return score
# movement_start = 0
# progression = "verse1 verse2"
# for comp_name in progression.split():
# # We need an arbitrary grammar from this instrument to start the score with
# max_instr = 0
# 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) >= instr["duration"]:
# 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+1:]
# 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
#
# if score_len(ins_score) > max_instr:
# max_instr = score_len(ins_score)
# for line in generate_csound_score(composition[comp_name][instr_name]["score"], instr["score_line"], movement_start):
# print line
#
# movement_start += max_instr
def select_node(grammar):
return random.choice(grammar)
def generate_score(score, grammars):
while 1:
found_substitution = False
for key,value in grammars.iteritems():
if score.find(key) != -1:
found_substitution = True
while score.find(key) != -1:
score = score.replace(key, random.choice(grammars[key]), 1)
# print scoe
if len(score.split()) > 2000:
for k in grammars.keys():
score = score.replace(k, "")
return score
if found_substitution is False:
break
return score
|