Spheres In Space (disquiet0272) by plusch

For this project, I constructed a self-playing Pure Data patch. When the patch was completed, I pressed “record” in Audacity and set the patch playing. After the patch turned itself off, I stopped recording, removed DC offset, normalized the audio, and trimmed silence from the start and finish.

For the frequencies and timing of the arpeggios, I used three sets of numbers that have the planetary ratios:
100, 133.333, 200, 300, 500, 800
150, 200, 300, 450, 750, 1200
300, 400, 600, 900, 1500, 2400

There was a main counter that triggered everything: the arpeggios, a 50 Hz bass note, and a noise burst. Sound sources were sine waves, sawtooth waves, and square waves. All except the bass note went through reverb and delay.

More on this 272nd weekly Disquiet Junto project — “Exoplanetary Intervals: Use music to express the relationships between planets” — at:
http://disquiet.com/0272/

Major thanks to Junto participant Mark Lentczner for having taken the lead in proposing and developing this project.

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/exoplanetary-interv-disquiet-junto-project-0272/

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

Image associated with this project is from NASA/JPL-Caltech/R. Hurt, T. Pyle (IPAC):

http://www.spitzer.caltech.edu/images/6266-ssc2017-01a-TRAPPIST-1-Planet-Lineup