SuperCollider

So now we're getting somewhere! 10 players playing all patterns. The players are listening to each other and they keep together nicely. All I have to do next is fix the ending and maybe find some more beautiful sounds.

Terry Riley's In C, version 2

Some time ago a did a thing on a series of numbers ( https://soundcloud.com/henklasschuit/discovering-supercollider03 ), that, as I learned later, was officially called the Collatz problem and it can be found on the Online Encyclopedia of Integer Sequences: http://oeis.org/A070165 . One day I was playing with those numbers on a keyboard and I had the impression, that some notes occur more frequent than others. This implies some kind of tonality. So I rewrote the code to use notenumbers in stead of frequencies. And here is the result. The fourth step, which coincidentally is a C, is dominant and the 10th, F# follows. There is quite some A, B flat, C#, E and G and very little E flat. A flat, B, D, and F are almost absent. So I guess the Collatz scale is: C, C#, E, F#, G, A, B flat, C and you can use E flat as some kind of Blue note or something.

Sourcecode: http://sccode.org/1-4Vx

Discovering the Collatz scale

This is so beautiful, I simply had to share it! I used the Pisano Periods to generate melodies. It is so simple and beautiful, I can hardly imagine no-one has ever tried this before. Anyway, here it is.  This track was inspired by https://www.youtube.com/watch?v=Nu-lW-Ifyec

Sourcecode available at http://sccode.org/1-4Wb

Pisanomelodies

You should actually see this. Therefor you can download the sourcecode at http://sccode.org/1-4Xa and open it in SuperCollider. it is a life simulator. Beasties are running across the screen, eating, finding a mate and eventually dying. Every event has its own sound. You'll know for whom the bell tolls and when a child dies, there's a smaller bell (very sad!).

Three fragments from The Beasties

Steve Reich's Clapping Music in SuperCollider. Just for fun and practice. I got the idea from Georgina Brett's wonderful adaptation.
Here's some code:
s.boot;
(
SynthDef(\clap, {arg out, cutoff;
	Out.ar(out,
		RLPF.ar(						
			WhiteNoise.ar(1),		
			cutoff			,
			0.15,						
			EnvGen.kr(				
				Env.perc(0.01, 0.25, 2, -1),
				doneAction: 2
			)*0.2;							
		)								
	)
}).add;
)

(
p=Pbind(
	\instrument, \clap,
	\out, 0,
	\cutoff, 2000,
	\dur,Pseq([1, 1, 2, 1, 2, 2, 1, 2]*0.2,53)
);
q=Pbind(
	\instrument, \clap,
	\out, 1,
	\cutoff, Pseq([Pseq([3000], 32), 0], 13),
	\dur, Pseq([Pseq([1, 1, 2, 1, 2, 2, 1, 2]*0.2, 4), 0.2], 13)
);
)
p.play;q.play;
			

Clapping Music (Steve Reich)

When I showed The Beasties ( https://soundcloud.com/henklasschuit/three-fragments-from-the-beasties ) to someone, he said it was just like John Conway's Game of Life. No, in fact it isn't. Conway's Game is a lot simpler: there's no energy, no food, no decision making, the creatures actually don't even move. But this remark inspired me to have another look at one of my old one-bit-wonders. In Confetti3 a random pattern of black and white squares is changed into a more or less structured image. Sounds, corresponding to the location on the board, make for some interesting melodies. This program can fairly easily be converted to John Conway's Game of Life: https://soundcloud.com/henklasschuit/confetti3a-game-of-life .
Source-code: http://sccode.org/1-4YU

Confetti3

It is relatively simple to convert Confetti3 ( https://soundcloud.com/henklasschuit/confetti3 )to John Conway's Game of Life. You just need to change the rules and make sure that any creature that runs of the board returns at the other side. It may be a good idea to speed things a bit up. This may be achieved by using the Xenakis-inspired version.
Source-code: http://sccode.org/1-4YV

Confetti3a: Game of Life

SuperCollider playing John Conway's Game of Life, Xenakis-inspired version with lots of synths switched on by live cells.
The slow, 1-bit-music version can be found at https://soundcloud.com/henklasschuit/confetti3a-game-of-life .
Source-code: http://sccode.org/1-4YW

Confetti3aX: Game of Life, Xenakis-inspired version

Imagine pulse-generators with different frequencies.
Pulses are added together to generate control signals, e.g. for pitch, or maybe time.
The signals can be presented in an array to be used in a Pbind.
The length of this array is determinded by the lcm of all reciprocal frequencies / periods. The number of pulse-generators determines the ambitus of the signals. The signals are repeated palindromes.

Example:
 
period | pulses
1:	1	1	1	1	1	1	1	1	1	1
2:	1	0	1	0	1	0	1	0	1	0
S:	2	1	2	1	2	1	2	1	2	1       

1:		1	1	1	1	1	1	1	1	1	1
2:		1	0	1	0	1	0	1	0	1	0
3:		1	0	0	1	0	0	1	0	0	1
S:	3	1	2	2	2	1	3	1	2	2      

1:	1	1	1	1	1	1	1	1	1	1	1	1
2:	1	0	1	0	1	0	1	0	1	0	1	0
3:	1	0	0	1	0	0	1	0	0	1	0	0
4:	1	0	0	0	1	0	0	0	1	0	0	0
s:	4	1	2	2	3	1	3	1	3	2	2	1

In this case, the signal is used to play a melody. The separate pulse-generators are shown bij different steps on a randomly chosen scale. For the bass-line the melody is cut in half and each half is played on a different channel in half tempo.

Source-code: http://sccode.org/1-53Y

I have been struggling with this piece for some time and suddenly, there it was: Disquiet Junto 252! Like a sign from above (or wherever you'd like your signs to come from). It seemed I had to do two things: 1. Stop struggling and upload. 2. Subscribe to Disquiet Junto. And so I did.

More on this 252nd weekly Disquiet Junto project — “Sonic Palindrome: Make music that sounds the same backwards and forwards” — at:

http://disquiet.com/0252/

More on the Disquiet Junto at:

http://disquiet.com/junto/

Subscribe to project announcements here:

http://tinyletter.com/disquiet-junto/

Project discussion takes place on llllllll.co:

llllllll.co/t/make-a-sonic-palindrome-disquiet-junto-0252/

There’s also on a Junto Slack. Send your email address to twitter.com/disquiet for Slack inclusion.

Soundcloud

Cumulative Pulses

Cumulative Pulses - disquiet0252

I let my computer choose one out of twenty note-patterns and one out of twenty rhythmic patterns and so I got a musical pattern. And then.... I did it again. In fact I did it ten times. I shifted some of the melodies one or two octaves up or down, I spread the patterns more or less equally over the left-to-right-range and I had all the melodies gradually fade in and out at a slightly different rate so that, in time, you will hear every possible combination of patterns.
More on this 298th weekly Disquiet Junto project — Dungeons & Drum Machines: Make a track with two rolls of a 20-sided die — at:

https://disquiet.com/0298/3

Major thanks to Jason Wehmhoener for initiating this project, and for co-plotting it.

More on the Disquiet Junto at:

https://disquiet.com/junto/

Subscribe to project announcements here:

http://tinyletter.com/disquiet-junto/

Project discussion takes place on llllllll.co:

https://llllllll.co/t/disquiet-junto-project-0298-dungeons-drum-machines/1

There’s also on a Junto Slack. Send your email address to twitter.com/disquiet for Slack inclusion.

Image used thanks to a Creative Commons license by Flickr user Konstantin Lazorkin:

flic.kr/p/4TvmQb

The Twenty Sided Die

The Twenty Sided Die (disquiet0298)

A thunderstorm, made with SuperCollider. There are three layers of sounds: rain, wind and thunder. 
There is a global envelope controlling the density of the raindrops and the thunder as well as the frequency of the wind. For the rain there are ticks of noise, but also a few drops falling on metal objects. I like that sound. 
For the wind there are two identical functions, one plays in the left channel and one plays right. Thunder is the most complicated of them all. It is filtered noise with a slow trigger for making a thunderclap and a fast trigger for the rumbling within a thunder. I added some FreeVerb to make it more spatial.

Code can be found at: http://sccode.org/1-29o

Discovering SuperCollider02: Thunderstorm

Imagine a box that is divided into smaller compartments. You start randomly throwing beads (or marbles or grains) into it. Wheneven one compartment is full, you stop. Check how many beads there are in a compartment whenever a bead falls and check the distribution of beads in the box after you stopped. Turn numbers into pitches. Or show numbers as ASCII-characters. For the latter you need to run the code in SuperCollider. The code is available at http://sccode.org/1-31X . For the complete experience you change maxValue to 255 and  you remove '+32' where shown.

Discovering SuperCollider04: Confetti2

Yeah, let's do the Bell Thing! The Bell Thing was inspired by an experiment that my brother did on his sampler, holding the keys down with boxes of musicassettes. Sounds great, looks ehm... interesting. There are several reasons to do this. First of all I definitely wanted to do The Bell Thing in SuperCollider. Furthermore tomorrow is my mother's 86th birthday and I was wondering if I could make a computercomposition that she would enjoy listening to. And finally it can be done with a tiny amount of code, so it could be a SCtweet. Here it is:

for(1,16,{arg i;{Pan2.ar(VarSaw.ar(50*i,0,0.35,EnvGen.kr(Env.perc(0.01,16/i),Impulse.kr(i/32,1.0.rand))/i),(-1**i)*i/16,0.25)}.play})


The Bell Thing

Remember Confetti 2, https://soundcloud.com/henklasschuit/discovering-supercollider04 ? There you heard only one oscillator at the time. In SuperCollider it is easy to use 100 oscillators at the same time, so while a distribution is made, you can hear sounds that correspond with all the values in the box. That doesn't swing at all, instead it gives a kind of Xenakis-like experience.
Sourcecode at: http://sccode.org/1-4Ro

Confetti2X

The search for prime numbers from 1 to 100 is represented by sound. Channel 1: the numbers, channel 0: the divisors. In the center: a fm-sound with a carrier that is related to the number and a modulator that is related to the divisor. A harmonic sound means the carrier is a multiple of the modulator, so the number is a multiple of the divisor. Therefor a harmonic sound means: not a prime number. When a new prime number is encountered, the list of prime numbers is played.
Code is available: http://sccode.org/1-4Sq

The quest for the prime numbers

There was a time when I was involved in Science! But that was a mistake. My Passion is music. I play the pipe-organ and synthesizer, I play the organ in a few bands and I like Apple computers. I discovered SuperCollider and VCV Rack: great ways of making sounds. Enjoy them on SoundCloud!

SuperCollider

Henk Lasschuit