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#!/usr/bin/env python
from __future__ import division
#import ipdb
"lead_instr": { # Instrument 'melody'
"pan_flute": { # Instrument 'melody'
"channel": 8,
"octave": 5,
"duration": 60,
"grammars": { # Notes for this instrument to use in this piece
"u": ["C2' B2 A3 D3 B C' D C2' z (u)", "C2' C2' C2' C2' (x)"],
"v": ["G2 F2 E2 F2 D5 (u)", "B/4 C/4' B/4 A/4 D2 z"],
"x": ["z4 (v)"],
"u": ["C2' B2 | A3 D3 || B | C' | D | C2' C2' | z | (u)", "C2' C2' | C2' C2' | (x)"],
"v": ["G2 F2 | E2 F2 | D5 (u)", "B/4 C/4' B/4 A/4 | D2 D2 | z | (u)"],
"x": ["z4 | (v)"],
},
},
"follow_instr": { # Instrument 'bass'
"bass": {
"channel": 4,
"sync": "lead_instr",
"sync": "pan_flute",
"octave": 2,
"duration": 60,
"grammars": { # Notes for this instrument to use in this piece
"u": ["C/2 C/2 C/2 z/2 (u)"],
},
},
"horn_timbre1": {
"channel": 13,
"octave": 2,
"duration": 60,
"grammars": { # Notes for this instrument to use in this piece
"u": ["C4 D4 (u)"],
},
},
"horn_timbre2": {
"channel": 13,
"octave": 2,
"duration": 60,
"grammars": { # Notes for this instrument to use in this piece
"u": ["G4 A4 (u)"],
},
},
},
},
"section1": {
"body": {
"lead_instr": { # Instrument 'melody'
"guitar": { # Instrument 'melody'
"channel": 6,
"octave": 5,
"duration": 60,
"grammars": { # Notes for this instrument to use in this piece
"u": ["C E A F G z (u)", "C E A F G z (v)"],
"v": ["A/2 D/2 G/2 C/2 | F/2 B/2 E/2 z/2 | (u)"],
"u": ["C | E | A | F | G | z | (u)", "C | E | A | F | G | z | (v)"],
"v": ["A/2 D/2 | G/2 C/2 | F/2 B/2 | E/2 | z/2 | (u)"],
},
},
"follow_instr": { # Instrument 'bass'
"bass": { # Instrument 'bass'
"channel": 4,
"sync": "lead_instr",
"sync": "guitar",
"octave": 2,
"duration": 60,
"grammars": { # Notes for this instrument to use in this piece
"u": ["C/2 C/2 | C/2 z/2 | (u)"],
},
},
"horn_timbre1": {
"channel": 13,
"octave": 2,
"duration": 60,
"grammars": { # Notes for this instrument to use in this piece
"u": ["C4 D4 (u)"],
},
},
"horn_timbre2": {
"channel": 13,
"octave": 2,
"duration": 60,
"grammars": { # Notes for this instrument to use in this piece
"u": ["C/2 C/2 C/2 z/2 (u)"],
"u": ["G4 A4 (u)"],
},
},
},
},
}
section_start = 0
for section in ["intro", "section1"]:
print "Section " + section
for section_name in ["intro", "section1"]:
print "Section " + section_name
subsection_start = section_start
section = composition[section]
section = composition[section_name]
for subsection in ["intro", "body", "outro"]:
if not section.has_key(subsection):
try:
print "Subsection " + subsection
subsection = section[subsection]
continue
print "\tSubsection " + subsection
subsection = section[subsection]
unordered_instrs = []
for instr in subsection:
subsection[instr]["name"] = instr
if not "sync" in subsection[instr].keys():
subsection[instr]["sync"] = None
unordered_instrs.append([subsection[instr]["sync"], instr])
ordered_instrs = topsort.topsort(unordered_instrs)
ordered_instrs.remove(None) # None used as a placeholder for sort order for instruments with no sync setting
instrs = []
syncs = {}
track = 0
for instr in ordered_instrs:
print "Instrument " + instr
instr = subsection[instr]
max_time = instr["duration"]
instr_score, syncs = render_instr(instr, syncs, max_time)
instrs.append(instr_score)
midify_instr_score(instr_score, track, instr["channel"], subsection_start)
longest_score = max(instrs, key=lambda i: score_len(i))
subsection_start += score_len(longest_score)
section_start += score_len(longest_score)
track += 1
except KeyError:
pass
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return total
def get_midi_note(octave, note):
return note + 12 * (octave+1)
def midify_instr_score(score, track, channel, t):
def midify_instr_score(score, track, channel, t, volume):
# Assume get_midi_note()
global mymidi
for token in score:
if isinstance(token, parse.Chord): # Chords
for note in token.chord:
note = get_midi_note(token.octave, note)
mymidi.addNote(track=track, channel=channel,pitch=note, time=t, duration=token.duration, volume=100)
mymidi.addNote(track=track, channel=channel,pitch=note, time=t, duration=token.duration, volume=volume)
elif isinstance(token, parse.Note): # Individual notes
note = get_midi_note(token.octave, token.value)
mymidi.addNote(track=track, channel=channel,pitch=note, time=t, duration=token.duration, volume=100)
mymidi.addNote(track=track, channel=channel,pitch=note, time=t, duration=token.duration, volume=volume)
elif isinstance(token, tree.Tree):
continue
t += token.duration
return []
if __name__ == "__main__": main()
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