Archive for the ‘adaptive JI’ Category

The Ontological Argument (adaptive Just Intonation)

Friday, February 19th, 2016


The Ontological Argument is a piece for Kontakt 5 factory string ensemble in adaptive just intonation with a “natural seventh”.

Parmenides was among the first in the Greek tradition to propose an ontological characterization of the fundamental nature of existence. In his prologue or proem he describes two views of existence; initially that nothing comes from nothing, and therefore existence is eternal. Consequently, our opinions about truth must often be false and deceitful. Most of western philosophy — including the fundamental concepts of falsifiability — have emerged from this view. This posits that existence is what may be conceived of by thought, created, or possessed. Hence, there may be neither void nor vacuum; and true reality neither may come into being nor vanish from existence. Rather, the entirety of creation is eternal, uniform, and immutable, though not infinite (he characterized its shape as that of a perfect sphere). Parmenides thus posits that change, as perceived in everyday experience, is illusory. Everything that may be apprehended is but one part of a single entity. This idea somewhat anticipates the modern concept of an ultimate grand unification theory that finally describes all of existence in terms of one inter-related sub-atomic reality which applies to everything.

Tesseract – Adaptive JI Acoustic Guitars

Saturday, February 13th, 2016

Schlegel_wireframe_8-cell The copyright holder of this (graphic) file, Robert Webb, allows anyone to use it for any purpose, provided that the copyright holder is properly attributed.

Tesseract is a recomposed piece that started life as an steel string 12 equal acoustic guitar improvisation trapped in an unpublished video. I extracted the audio track and then brought it into Melodyne 4 Multitrack. Once there I duplicated the track and transposed the duplicate up a fifth creating a lot of lush harmonies. Then to polish the harmonies I selected both tracks and applied Melody 4’s adaptive JI algorithm. Applying adaptive just intonation to the combined tracks is crucial to allow the programming to operate on the newly created fifth relationships. Lastly I panned the two tracks left and right.

Wendelstein 7-X an impression for processed sound, brass and percussion in adaptive just intonation

Friday, December 11th, 2015

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“Wendelstein 7-X” an impression for processed sound, brass and percussion in adaptive just intonation is a piece inspired by the first successful test of a large scale stellarator fusion reactor. Click on the graphic for more information. NOTE: this piece has a wide dynamic range

La cathédrale engloutie for Brass and Double Bass Ensembles Tuned in Adaptive Just Intonation

Monday, January 6th, 2014


La cathédrale engloutie for Brass and Double Bass Ensembles Tuned in Adaptive Just Intonation is an adaptation of a piano performance of Debussy’s composition that I used Kontakt’s adaptive just intonation setting with “natural seventh” engaged. This sounds a bit off in places since using sustain to smear brass (as in the piano piece) doesn’t work too well, yet then again I think parts sound rather majestic. Your mileage may vary.

Mirror to the Sky – brass in adaptive JI

Friday, October 4th, 2013

Mirror to the Sky is an improvisation using Kontakt 5 with brass with the natural seventh adaptive setting.

download audio
download full quality video

Oggi Cylinder in Adaptive JI

Wednesday, August 7th, 2013


I found a Oggi stainless steel cylinder for $2 at Goodwill. I sampled it and used Kontakt’s built in adaptive Just Intonation preset to perform an improvisation. The cylinder sounded pretty good over a surprisingly large range of pitches.

Thin Ice for Alto, Female Choir, Harp, and Percussion in adaptive JI, 16 edo, and 8 edo.

Friday, June 7th, 2013


Poem by Richard Leach selected and interpreted / recited / sung by Christiane Offenbar

The ice is thin, the ice is thin –
the shore more distant year by year,
and nearly sixty since I left it now.

There is no going back again.
And I am old yet not so very old –
I bless the ice. I pray for cold.

Thin Ice is a piece for Alto (Christiane Offenbar in adaptive JI), Female Choir in 16 edo, Harp in 8 edo, bass drum and tamtam.

Fretless Classical Guitar Improvisation

Monday, June 3rd, 2013


Fretless Classical Guitar Improvisation – to be honest I didn’t think the guitar was going to have as much sustain on fingered notes as it did and I ended up having quite a bit of fun playing with various JI intervals and a touch of 24 edo. The guitar cost only $20 at my local Guitar Center because it had Grateful Dead stickers plastered over it, perhaps in an attempt to hide the slight impact on the soundboard. But for that price I can remove stickers, live with cracks and gleefully remove the frets. This will probably end up being a harmonic series fretted guitar. I just put on new strings the day before so I have to tune the guitar a little here and there during the performance. The tuning I used is a modified Dante Rosati tuning of CGCGCC – the duplicated C’s on top are because the high tension string set just wouldn’t make the high G without breaking. Luckily breakage is a lot easier to deal with on a classical. You can see from the above pictures that I back filled the kerfs (fret slots) with plastic wood and sanded. It looks sloppy but that excess is actually filling in the slight dents in the wood – I used a straight edge to remove the excess plastic.

Tuning Comparison of La messa de Nostre Dame Sanctus by G. Machaut

Sunday, December 30th, 2012

Guillaume de Machaut via Classical Forums (click picture for article)

Here is a comparison of La messa de Nostre Dame Sanctus in different tunings as rendered via Kontakt’s choir sample set. The midi file I used is here. (S.Takahata transcribed the piece to midi) The score with Sonar’s brain-dead accidentals is here.

First version uses Kontakt’s built in adaptive JI (adaptive JI = dynamic pure tuning like this live example video that shows the changes in intonation in real time )

La messa de Nostre Dame Sanctus in adaptive JI

La messa de Nostre Dame Sanctus in Super Pythagorean (scala text file of the tuning)

La messa de Nostre Dame Sanctus in Pythagorean – probably the most historically correct. (scala text file of the tuning)

Array Mbira Blues in Adaptive Just Intonation

Wednesday, December 26th, 2012

A short blues improvisation with Soniccouture’s Array Mbira sample set in adaptive Just Intonation via Kontakt 5.