Matthew R. Scott matthewryanscott

Written using Claude Code and z.ai's GLM-4.7 model using this prompt:

Write a script called "pattern_expander.py" that takes two arguments: a sunvox project filename, and a factor (positive int).

The script will use radiant-voices (rv) to open the sunvox file, and for all patterns it will do this:

expand the length of the pattern by the factor

rewrite the pattern data so that the pattern data is expanded to fill the new pattern length (e.g. for factor of 2, 1 new blank line between each existing line... for factor of 3, 2 new blank lines, etc.)

multiply the "x" position of the pattern by the factor

Keybase proof

I hereby claim:

I am matthewryanscott on github.
I am gldnspud (https://keybase.io/gldnspud) on keybase.
I have a public key ASAjLD3nW-ZT_9eEDNVKzoP0F2jbn3_dOjUgIO-Z5ks1wAo

To claim this, I am signing this object:

	# wav2sunvox
	# by Queries
	#
	# A tool for importing stems into SunVox.
	#
	# License: MIT
	#
	# Proper repo: some day maybe...
	# For now I'll keep the gist up-to-date with my local copy:
	# https://gist.github.com/matthewryanscott/d648a6462d555b0ebdbf83fd352f3008

	from pathlib import Path
	from struct import pack


	def add_serum_chunk(wav_path: Path):
	# Existing WAV file must be in a 2048-samples-per-frame format.
	# See https://www.kvraudio.com/forum/viewtopic.php?t=517146
	comment = "<!>2048 00000000 wavetable (www.xferrecords.com)"
	encoded = comment.encode("utf8")
	chunk_id = b"clm "

	from pathlib import Path

	from rv.api import m, Note, NOTE, Pattern, Project, Synth


	if __name__ == "__main__":
	# Metamodules contain a project.
	project = Project()

	# Simple routing of a multisynth to a generator to output.

	from collections import deque
	import sys
	import time
	import threading

	import mido
	import numpy as np
	from orbitant import backend as midi
	from orbitant.transport import START, STOP, CLOCK
	import sounddevice as sd

	0 1 2 3 4 5 6 7 8 9 a b c d e f
	CHNM: 00000000
	CHDT: 00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
	------------------------------------------------ ?
	00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
	------------------------------------ ?
	----------- max sample index + 1
	(0 for no samples)
	00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
	----------- ?