spiffyscore

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Overview
Comment:Added a volume offset parameter to each instrument. Fixed a bug that kept instruments from always being rendered, and one that broke midi files.
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SHA1: 821ac3e4d67ffce59c4d0b38a5ff31bd6223ea8f
User & Date: brian on 2011-11-27 02:03:54
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Context
2011-11-27
02:26
Fixed a bug that prevented sharps and flats from working check-in: bf135b5321 user: brian tags: develop
02:03
Added a volume offset parameter to each instrument. Fixed a bug that kept instruments from always being rendered, and one that broke midi files. check-in: 821ac3e4d6 user: brian tags: develop
2011-11-17
19:55
Removed leftover csound function lines that got printed. Also disabled ipdb so I get concise stacktraces. Also made program crash when your score pointed to a non-existant node. Previously that just generated an invalid MIDI file (somehow...) check-in: f8034c7dfb user: brian tags: develop
Changes
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Modified parse.py from [bcac1af73f] to [ce9611a745].

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    t_BASENOTE = r"[A-Ga-g]"
#    t_BASENOTE = r"I+V?|VI*|i+v?|vi*"
    t_ACCIDENTAL = r"\^{1}|_{1}|="
    t_REST = r"z"
    t_OCTAVE = r"'+|,+"
    t_CHORD_TYPE = r"m|7|m7|0|o|\+|mb5|sus|sus4|maj7|mmaj7|7sus4|dim|dim7|7b5|m7b5|6|b6|m6|mb6|46|maj9|9|add9|7b9|m9"
    t_PAREN = "\(|\)"
    t_PAREN = "\[|\]"
    t_SYNCOPATE = "\+|-"
    t_NODE = r"\([a-zA-Z0-9_-]+\)"

    def t_NOTE_LENGTH(t):
        r"/?\d+"
        multiplier = float(t.value.strip("/"))
        if t.value.startswith("/"):

Modified spiffyscore.py from [87c5508f41] to [58892e1cd4].

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#!/usr/bin/env python

from __future__ import division
#import ipdb
import ipdb
import os
import random
import sys
import time

from midiutil.MidiFile import MIDIFile as midifile
import parse
import topsort
import yaml

import tree

random.seed(time.time())
mymidi = midifile(15)

def main():
    composition = {
        "intro": {
            "body": {
                "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
                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
            for sync_instr in ordered_instrs:
                if sync_instr not in subsection.keys():
                    raise KeyError("The sync instrument '%s' does not exist in this subsection" % sync_instr)

                instrs = []
                syncs = {}
                track = 0
                for instr in ordered_instrs:
                    print "Instrument " + instr
                print "\t\tInstrument " + instr
#                if instr == "guitar":
#                    ipdb.set_trace()
                    instr = subsection[instr]
                    max_time = instr["duration"]
                    instr_score, syncs = render_instr(instr, syncs, max_time)
                    instrs.append(instr_score)

                volume = 100
                if instr.has_key("vol_offset"):
                    volume += instr["vol_offset"]
                    print "\t\t\tvolume offset = %d, nev volume = %d" % (instr["vol_offset"], volume)
                    midify_instr_score(instr_score, track, instr["channel"], subsection_start)
                midify_instr_score(instr_score, track, instr["channel"], subsection_start, volume=volume)
                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
    with open("out.mid", "wb") as outfile:
        mymidi.writeFile(outfile)



def render_instr(instr, syncs, max_time):
    for g in instr["grammars"]:
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            grammar = random.choice(time_filtered_grammars.keys())
    if score is None:
        grammar = random.choice(time_filtered_grammars.keys())
    elif instr["sync"] is None:
        grammar = get_next_node(score);
        if grammar not in instr["grammars"].keys():
            raise Exception("You tried to direct a grammar to a node that doesn't exist")

    if grammar not in time_filtered_grammars.keys():
        return [], syncs

    phrases = time_filtered_grammars[grammar]
    if instr["name"] not in syncs.keys():
        syncs[instr["name"]] = []
    syncs[instr["name"]].append({"node": grammar, "time": current_time})

    return random.choice(phrases), syncs

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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()