def EvalNotes(phrases, output_filepath=None):
'''
Evaluates notes and plays them
'''
a = ot.startOvertone()
if output_filepath:
a = ot.startRecording(output_filepath)
masterlist = defaultdict(list)
for phrase in phrases:
# Add notes to the master notelist
for instr in phrase.keys():
masterlist[instr].extend(phrase[instr])
# Get a common time
commonTime = ot.getCommonTime()
for index, notelist in enumerate(masterlist.values()):
# Play the notes!
try:
if index == len(masterlist.values()) - 1:
ot.playNotes(notelist, True, commonTime, True)
else:
ot.playNotes(notelist, False, commonTime, False)
except Exception:
pass
def rep_loop():
ot.startOvertone()
recognizer_grm = ReadFile('fortissimo/fortissimo_repl.grm')
parser_grm = ReadFile('fortissimo/fortissimo.grm')
interp = interpreter.Interpreter()
recognizer = parser_generator.makeParser(grammar_parser.parse(recognizer_grm))
parser = parser_generator.makeParser(grammar_parser.parse(parser_grm))
line = ""
depth, num_phrases = 0, 0
phrase_list = [""]
prompt = "ff > "
while(True):
line = raw_input(prompt)
if not line.strip():
continue
try:
ast = recognizer.parse(line)
s = ast[0]
except:
print ": command not recognized"
continue
if s[0] == "quit" or s[0] == "exit":
sys.exit()
elif s[0] == "save": #REDO
f = open("saved_phrases", "w")
try:
for x in phrase_list:
f.write(x + "\n")
except:
print "Could not save phrases."
elif s[0] == "load": #REDO
f = open("saved_phrases", "r")
s = parser.parse(f.read())
try:
interp.evalStmt(ast, interp.global_env)
except:
print "Could not load."
continue
elif line == "print env": #DEBUG ONLY REMOVE LATER
pprint.pprint(interp.global_env)
elif s[0] == "print": #REDO
if len(phrase_list) == 1:
print "No phrases created"
else:
for x in phrase_list[:-1]:
print "Printing phrase: ",phrase_list.index(x) + 1
print x
elif s[0] == "phrase-end":
if depth == 0:
print "Cannot end phrase here"
elif depth == 1:
prompt = "ff > "
phrase_list[num_phrases] += line
phrase_ast = parser.parse(phrase_list[num_phrases])
try:
interp.evalStmt(phrase_ast, interp.global_env)
depth -= 1
num_phrases += 1
phrase_list.append("")
except:
pass
else:
phrase_list[num_phrases] += line + " "
depth -= 1
elif s[0] == "phrase-start":
# Starts a phrase declaration
prompt = "... "
depth += 1
phrase_list[num_phrases] += line + " "
elif s[0] == "play" and depth == 0:
# plays the notes
try:
play_env = interp.evalStmt(ast, interp.global_env)
phrases = play_env["_notes"]
interp.resetNotes()
EvalNotes(phrases)
except:
print "Could not play phrase."
elif s[0] == "loop" and depth == 0:
# Looks the input 4 times
try:
play_env = interp.evalStmt(ast, interp.global_env)
phrases = play_env["_notes"]
interp.resetNotes()
EvalNotes(phrases)
except:
print "Could not loop phrase."
elif s[0] == "record" and depth == 0:
ot.startRecording("./ff-out.wav")
elif s[0] == "stop-record" and depth == 0:
ot.stopRecording()
elif s[0] == "record-phrase" and depth == 0:
'''
Start recording a specific phrase
'''
try:
ot.startRecording()
play_env = interp.evalStmt(ast, interp.global_env)
phrases = play_env["_notes"]
interp.resetNotes()
EvalNotes(phrases, "./ff-out.wav")
except:
print "Could not record phrase."
elif s[0] == "help" and depth == 0:
help_message = """
Fortissimo Usage
================
REPL-Only Commands:
record -- starts recording to ff-out.wav
stop recording -- stops recording
record <Phrase Name> -- starts recording a phrase
help -- print this help message
exit/quit -- quit the Fortissimo REPL
Language Usage
==============
Phrase Definition:
| <Phrase Name>
<Statements>
||
Statements:
Add a list of notes -- notes <list of notes>
Set the current scale -- key of <Letter> <Scale Name>
Set the current tempo -- tempo of <Tempo>
Set the current meter -- meter of <Notes per Measure>/<Note Getting Beat>
Set the current instrument playing -- playing <Instrument Name> (with <Optional List of Arguments>)
Play a phrase -- play <Phrase Name>
Play a phrase and set the phrases attributes -- play <Phrase Name> with
-- Parameters
-- key <Key>
-- meter <Meter>
-- octave <Octave>
-- instrument <Instrument Name>
-- tempo <Tempo>
Declare an instrument -- <Instrument Name> is <Instrument>
Note Types:
Scale Number Note
-- Corresponds to number in scale
-- Form of <Scale Number>(Optional Duration)
-- e.g. 4q
Scientific Notation
-- The absolute name of a note
-- Form of <Letter><Octave>(Optional Duration)
-- e.g. c4w
Chords
-- Plays a group of notes concurrently
-- Form of (<List of Notes>)
-- e.g. (c4q e4q g4q)
Valid Durations:
w -- whole
h -- half
q -- quarter
e -- eighth
s -- sixteenth
t -- thirty-second
Available Instruments
-- Piano
-- Guitar
-- SawWave
-- Synth
-- Overpad
-- Bass
-- Ping
Available Scales
-- major
-- minor
-- melodicminor
-- harmonicminor
-- pentatonicmajor
-- bluesmajor
-- pentatonicminor
-- bluesminor
-- augmented
-- diminished
-- chromatic
-- wholehalf
-- halfwhole
-- wholetone
-- augmentedfifth
-- japanese
-- oriental
-- ionian
-- dorian
-- phrygian
-- lydian
-- mixolydian
-- aeolian
-- locrian
"""
print help_message
else:
if depth == 0:
try:
interp.evalStmt(ast, interp.global_env)
except Exception:
print "Could not execute statement."
else:
phrase_list[num_phrases] += line + " "
