Archive for the ‘composition’ Category

Its a Glitch (Just Intonation, Video)

Friday, May 19th, 2017

using melodyne, sonar, audacity and movie studio – version 2 audio track (which I prefer)
audio only

using melodyne, sonar, audacity and movie studio – version 1 soundtrack
audio only

Rivendell for altered voice and percussion

Saturday, May 13th, 2017

Rivendell is a short piece performed on the Alesis Q49 using Kontakt, Exhale, and Requiem.

BitWiz Harmonic Series Code

Saturday, May 6th, 2017

BitWiz is a $0.99 app that lets you run single line C code music generation algorithms. I used it to perform this piece by selecting code in sequence and using the X-Y manipulation when it was a part of the code. This software from Kymatica is for the iPad. The analysis shows that at least the first section is clearly non-12 equal. I didn’t analyze the rest, however, it seems to me to be almost next to impossible for a single line of code to generate something as unnatural as 12 equal.

Click the picture to enlarge the Melodyne analysis of section 1 or the spectrum analysis of the Gong piece below.

As a bonus For Gongs, Bow, and Super Balls with Effects

Slide for More (9 edo for strings, brass, and woodwinds)

Sunday, April 30th, 2017

Slide for More is a composition for strings, brass, and woodwinds realized through Sonar and Kontakt’s factory library. Scoredatura is linked here. Picture by Chris Vaisvil

Its a Burden (a Capella Semaphore 19)

Sunday, April 30th, 2017

Its a Burden in Semaphore[19] retuned by Melodyne from the 12 equal version

Its a Burden in 12 equal

Its a Burden compared – left is 12 equal, right Semaphore[19] – on speakers the changes in tuning is very evident

click the file to see the enlarged Melodyne view

The 19th Sky of Semaphore

Saturday, April 8th, 2017

The 19th Sky of Semaphore is a composition for an imaginary chamber ensemble of two semaphore 19 tuned pianos. Photo by Chris Vaisvil
For comparison I present the same piece in 19 edo. If you listen closely you can hear slight beating in the opening 5th of the piece in the 19 edo version but is not present in the sempahore19 version.

! E:\cakewalk\scales\semaphore-19.scl

Harmonic Series Piano

Sunday, April 2nd, 2017

Raw harmonic series tuned piano

Here is how this piece was made. I played a 12 string electric guitar with a Wampler sustain pedal and Roland Space Echo pedal. Normalized, and reversed that track. Then I used Melodyne to extract a polyphonic midi representation – more or less that same as what the guitar sounded like. Then I added a midi echo effect that is called echo delay which also has a swing setting. The midi output of that was chained into Sonar’s track midi quantization and additional arpeggiator. This midi stream was then into to Kontakt with the tuning set to the harmonic series as show in the photo below.

Parva Keyboard Slope Tuning with Melodyne Analysis

Tuesday, March 28th, 2017

Click on picture to enlarge and see the Melodyne analysis of the unknown tuning.

By using stacked keyboard note to frequency settings in the Parva modulation matrix I happened on this tuning that has a very nice sounding 318 cent near just minor third and a 1470 cent “9th” interval. This -almost- closes at the octave + tritone – which is close enough that Melodydne doesn’t show the octave with the default settings thinking it is an overtone.


This re-tuning technique relies on changing the midi note to pitch relationship called in some circles the “slope” of the keyboard.

Claire de Lune in Wilson’s Golden Horagram nr.1 tuning

Saturday, March 11th, 2017

By Jessie Eastland – Own work, CC BY-SA 3.0,

Claire de Lune in Wilson’s Golden Horagram number1 tuning using u-he‘s Diva I think shows some of the amazing attributes of Wilson’s tuning systems. Throwing an arbitrary 7 note tuning and coming up with (for a microtonalist) very listenable result is impressive. I hope you enjoy this transtuned rendition as music as I have. The tuning is below.

! wilson_gh1.scl
Golden Horagram nr.1: 1phi+0 / 7phi+1

Micronation (Melodyne processed aeolian harp )

Saturday, March 11th, 2017

Micronation is an audio experiment where I took a ~30 seconds of aeolian harp captured during a high wind event and used Melodyne to determine each of four root notes by frequency. [The strings were tuned justly by ear but drift after several hours exposure to the elements outside, especially due to temperature changes] Then I used Paul’s Extreme Sound Stretch to isolation each vertical harmonic structure based upon the roots determined by Melodyne (10 harmonics high by 25 cents wide)and exporting the four files. Then I used Sonar to sequence the exported wav files and applied reverb, EQ, and tape simulation. The experimentally determined roots are 92 Hz, 118 Hz[59/46], 140 Hz[35/23], and 184 Hz [ 2/1 the octave of 92].