16 Psyche (solo BP guitar)

October 22nd, 2016

psyche20150929nasa Image by NASA

16 Psyche – a short improvisation on solo Bohlen-Pierce guitar

A Day Removed

October 18th, 2016

a_day_removed Photo by Chris Vaisvil

A Day Removed is a piece for rock ensemble – three tracks of Bholen-Pierce Electric Guitar and Drums.

Stripped Butte Valley (wind ensemble in 11-limit JI)

October 15th, 2016

striped_butte_in_butte_valley Scala file is a click through via the graphic

Stripped Butte Valley is a piece for wind ensemble in 11-limit JI

A Clean Machine (adaptive JI classical guitar via Melodyne)

October 13th, 2016

407crop Note Melodyne manual calls adaptive JI “dynamic” JI – see entry down the page by clicking the photo I took.

A Clean Machine – classical guitar re-composed to adaptive Just Intonation with a few “interesting” surprises introduced by Melodyne’s programming.

a fall morning (a music video)

October 4th, 2016


It starts foggy and a little while with sky until clouds appear – Soniccouture xbow guitar samples played on a Linnstrument in 19 notes per octave tuning

audio only

September (JI Ambient)

October 1st, 2016


September – a collaboration of Christiane Offenbar, Meolog, and myself. All of the audio is derived from Christiane’s singing of Meolog’s poem which is below. The processing created tracks that were based on harmonic series started on 27.5 cents, 41.25 cents, and parallel tracks in a fugue at the octave, minor 3rd, 4th, and 5th.


die letzten
warmen tage:
sommers versprechen
noch einmal auf
und lichtet sich
mit den bäumen
mit dem wind

The Temple of Clouds

September 24th, 2016

img_2165rs Picture by Chris Vaisvil

The Temple of Clouds is a combination of processed electric 17 edo guitar and timelapse video – at about 5 through 6 minutes you can see a thunderstorm come through. The video was recorded with a Brinno TLC200 time lapse camera.The tuning is unknown though a 17 edo guitar was used to generate the starting point.

Two 17 edo Guitar Centered Pieces

September 21st, 2016

img_2175crop Photo by Chris Vaisvil

Piece for solo 17 edo guitar

Piece for 17 edo guitar with effects and used as a faux 17 edo bass accompaniment

I think the relationship between the two pieces are pretty obvious. The top one started a number of harmonic ideas that get expanded in the bottom ensemble.

The Underwater Garden (processed percussion)

September 17th, 2016
A Blue Starfish (Linckia laevigata) resting on hard Acropora coral. Lighthouse, Ribbon Reefs, Great Barrier Reef

A Blue Starfish (Linckia laevigata) resting on hard Acropora coral. Lighthouse, Ribbon Reefs, Great Barrier Reef

The Underwater Garden consists of processed gongs and chimes.

Bat Bomb – Harmonic Series

September 16th, 2016


Bat Bomb is part of an ongoing series of experiments to try to learn how to make aeolian harp type sounds. In this case I used Uhe’s Brazille with a patch that manipulated the overtone by adjusting the modwheel. Using my Linnstrument in MPE mode I was able to independently adjust the overtone (13 in total per note) by moving my finger in the “Y” dimension (which was routed to the modwheel channel control) and the root note from Carlos “Super JI” tuning by selecting the pad I played. The original patch had a lot of high end to it and are some time listening to it I decided to turn the filters down to try to get closer to a sine wave. Then I experimented with tempo. I find the 60 BPM version the most interesting at the time I am writing this post though there are some interesting peculiarities of each version. And, no, I don’t feel that came close to the aeolian harp, yet I think the experiment has its merit in learning sound design technique and audio result. Of course YMMV. I present the audio in the order I find most interesting. And yes, the bat bomb was real – click the photo to read about it as you listen.

Here is the audio spectrum analysis of the 60 BPM version. Click to enlarge.

60 BPM version

240 BPM version

Original patch, 120 BPM version