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Epistemologist-at-large

ology / control.pl

Last active February 19, 2025 04:51

Why is a note played when note_off() fires?

	#!/usr/bin/env perl
	use strict;
	use warnings;

	use Data::Dumper::Compact qw(ddc);
	use MIDI::RtMidi::FFI::Device ();

	my $midi_in = RtMidiIn->new;
	$midi_in->open_port_by_name(qr/tempopad/i);

ology / build.log

Last active January 24, 2025 18:09

cpanm Alien::RtMidi # fails on my Linux

	cpanm (App::cpanminus) 1.7047 on perl 5.040000 built for x86_64-linux
	Work directory is /home/gene/.cpanm/work/1737741557.397385
	You have make /usr/bin/make
	You have LWP 6.77
	You have /usr/bin/tar: tar (GNU tar) 1.35
	Copyright (C) 2023 Free Software Foundation, Inc.
	License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
	This is free software: you are free to change and redistribute it.
	There is NO WARRANTY, to the extent permitted by law.

ology / .pl

Last active January 21, 2025 00:31

swing math

	# $d->metronome44($d->bars, $d->ride2, $d->quarter, 67)
	sub metronome44 {
	my $self = shift;
	my $bars = shift \|\| $self->bars;
	my $cymbal = shift \|\| $self->ride1;
	my $tempo = shift \|\| $self->quarter;
	my $swing = shift \|\| 50; # percent
	my $x = dura_size($tempo) * TICKS;
	my $y = sprintf '%0.f', ($swing / 100) * $x;
	my $z = $x - $y;

ology / .log

Last active January 18, 2025 18:02

Mojo upload is undef??

	Use of uninitialized value $file in concatenation (.) or string at .../upload.pl line 96.
	Mojo::Server::Sandbox::d51d682e78b961e143b7ed5b80fccaf5 L96
	[2025-01-18 09:45:41.85818] [31751] [error] [TA0Dg0GidrV3] Can't call method "size" on an undefined value at .../upload.pl line 102.

ology / date-primes.txt

Last active December 30, 2024 20:19

Prime dates

ology / clock-it.pl

Last active December 13, 2024 17:12

Perl MIDI clock - No dice

	#!/usr/bin/env perl
	use strict;
	use warnings;

	use Getopt::Long qw(GetOptions);
	use MIDI::RtMidi::FFI::Device ();
	use Time::HiRes qw(usleep);

	my %opt = (
	virtual => 'foo',

ology / clock-it.pl

Last active December 12, 2024 23:57

Trying to send a MIDI clock with perl

	#!/usr/bin/env perl
	use strict;
	use warnings;

	use Getopt::Long qw(GetOptions);
	use MIDI::RtMidi::FFI::Device ();
	use Time::HiRes qw(usleep);

	my %opt = (
	virtual => 'foo', #'perl-rtmidi',

ology / clock-it.py

Last active December 12, 2024 23:28

Clocking my synth over my usb audio interface with python

	import mido
	import time

	# https://github.com/ology/Music/blob/master/clock-it.py

	def send_clock(outport, bpm=120):
	# Calculate the time between clock messages (24 PPQN per beat)
	interval = 60 / (bpm * 24)
	try:
	while True:

ology / clock-it.py

Created December 12, 2024 20:08

Trying to send a pulse to a synth over my MIDI interface... Close, but no cigar (yet)

	import mido
	import time

	def send_clock_messages(outport, bpm=120, num_beats=4):
	# Calculate the time between clock messages (24 PPQN per beat)
	interval = 60 / (bpm * 24)
	for _ in range(num_beats * 24):
	outport.send(mido.Message('clock'))
	time.sleep(interval)

ology / out.txt

Created November 9, 2024 18:18

Can't list deps in my pyproject.toml?

	(Python) gene@zappa:~/sandbox/dev/Python> pip install -i https://test.pypi.org/simple/ chess-coverage==0.1.1
	Looking in indexes: https://test.pypi.org/simple/
	Collecting chess-coverage==0.1.1
	Using cached https://test-files.pythonhosted.org/packages/44/73/23e180406c9f065a76a81594b70cf8d1f17503f31b742c695b2ca7224fd0/chess_coverage-0.1.1-py3-none-any.whl.metadata (42 kB)
	INFO: pip is looking at multiple versions of chess-coverage to determine which version is compatible with other requirements. This could take a while.
	ERROR: Could not find a version that satisfies the requirement chess (from chess-coverage) (from versions: none)
	ERROR: No matching distribution found for chess