Archive for the ‘composition’ Category

submariner tuned violas

Friday, January 27th, 2017

An improvisation in Scott Dakota’s Submariner_1025_383_[19] (see previous post for scala file) – This improvisation tends to dwell on harmonies created from a virtual viola ensemble. More tuning details – Period: 1025/512, generator 383/256. Septimal meantone with a lot of /2^n self-coherent-beating intervals. Scott Dakota Jan 2017.
audio only

in wandelwonderland

Friday, January 20th, 2017



A composition by Christiane (vocals, melody), mlleduplessis(lyrics), Chris (accompaniment ) in 10 notes per octave

Iridium Platinum Meter

Saturday, January 14th, 2017



Iridium Platinum Meter – for harp, alto flute, upright bass, drum kit – Valentine-porcupine circulating strictly proper 15-note lesfip tuning developed by Gene Ward Smith – see scala file below.

! valenporc15.scl
!
Valentine-porcupine circulating strictly proper 15-note lesfip scale, 11 limit diamond target, 13.8 to 15.5 cent tolerance
! approximately 555556655555555 in 77edo
15
!
79.99698
158.13771
233.53897
314.10167
389.50293
467.64365
547.64064
623.18179
701.41713
780.49908
873.82032
967.14156
1046.22350
1124.45885
1200.00000

The Tempest Prognosticator

Saturday, December 31st, 2016



In 24 edo (largely) using Shoom, Gestrument, and Bowls HD => download

The tempest prognosticator comprises twelve pint bottles in a circle around and beneath a large bell. Atop the glasses are small metal tubes which contain a piece of whalebone and a wire connecting them to small hammers positioned to strike the bell. In his essay Merryweather described the workings of the device:
“ After having arranged this mouse trap contrivance, into each bottle was poured rain water, to the height of an inch and a half; and a leech placed in every bottle, which was to be its future residence; and when influenced by the electromagnetic state of the atmosphere a number of leeches ascended into the tubes; in doing which they dislodged the whalebone and caused the bell to ring. ”
— George Merryweather

The leech would have difficulty entering the metal tubes but would endeavour to do so if sufficiently motivated by the likelihood of bad weather. By ringing the bell it would signify that that individual leech is indicating that a storm is approaching. Merryweather referred to the leeches as his “jury of philosophical councilors” and that the more of them that rang the bell the more likely that a storm would occur.

In his essay Merryweather also noted other features of the design, including the fact that the leeches were placed in glass bottles placed in a circle to prevent them from feeling “the affliction of solitary confinement”

Microtonal Gestrument Demo Video

Tuesday, December 27th, 2016

A video demo of the Gestrument, an algorithmic music composition iPad program that supports alternate tunings. It works hand in hand with ScaleGen (not shown here) for $13.99 bought as a bundle. Its a great value and has a long list of features such as morphing of tunings, recording, a nice selection of voices and output of midi.

nearly an eternity

Friday, December 23rd, 2016

Picture by Chris Vaisvil


nearly an eternity – processed electric aeolian harp

Tuning as per Melodyne analysis

Golden Horagram 01 for Concert Band

Tuesday, December 20th, 2016

Golden Horagram 01 for Concert Band

december harp (aeolian harp)

Saturday, December 17th, 2016

You can see the tuning in Melodyne


december harp

Remove and Discard (12 of 17 et)

Tuesday, December 13th, 2016


Photo by Chris Vaisvil


Remove and Discard is an ambient LinnStrument sequencer and performance combination piece using the Scale collection 12 of 17 et tuning.

! 12-17.scl
!
12 out of 17-tET, chain of fifths
12
!
70.58824
141.17647
282.35294
352.94118
494.11765
564.70588
635.29412
776.47059
847.05882
988.23529
1058.82353
2/1

Capturing Paul (Acousmatic in Adaptive Just Intonation via Melodyne)

Saturday, November 26th, 2016

capturing_paul Melodyne

capturing_paul2 Spectrum analysis

Capturing Paul
What I did was modified Paul Mimlitsch’s prepared guitar track posted to Sound-In. In detail I deleted the highest and lowest notes, and retuned to 22 edo. Then I tuned it to 12 equal whole tone, and then to adaptive just intonation. I normalized the perceived tempo and then quantized the notes to triplet 16th and eight notes. Then I “pulled” the notes to be about 300% longer than originally. Lastly I used the Melodyne spectrum manipulation to kill all harmonics greater than #8. That made the sound a lot purer and a bit like brass in the final result.