Archive for the ‘electronic’ Category

Incidental Music for an Eclipse

Sunday, August 20th, 2017

Incidental Music for an Eclipse is a piece performed by Chris Vaisvil

Tuning is a mixture of raw harmonic series based on C and Wendy Carlos’ twelve note scale based on octave-repeating harmonics on A. A = 1/1
(440 Hz). 1/1 17/16 9/8 19/16 5/4 21/16 11/8 3/2 13/8 27/16 7/4 15/8

Picture from Wikipedia by Luc Viatour /

Up Tempo (Eagle 53)

Wednesday, August 16th, 2017

Up Tempo is a short performance in Eagle 53 using CrX4, Spectral, and Session Drummer in John O’Sullivan’s Eagle 53 tuning.

picture by Chris Vaisvil

Fake News (Bohlen-Pierce)

Sunday, July 23rd, 2017

Fake News for electronics and electric Bphlen-Pierce guitar

A Short Composition in Marvel Woo

Monday, July 10th, 2017

A Short Composition in Marvel Woo composed and played on a Korg MS-2000
PDF score of composition
Tuning by Gene Ward Smith – used rounded to the nearest cent

Six 7-limit tetrads marvel woo scale with 51 11-limit dyads
! 7-limit transversal [15/14, 7/6, 6/5, 5/4, 9/7, 7/5, 3/2, 8/5, 12/7, 7/4, 15/8, 2]

The Bootstrap Paradox (adaptive JI ambient)

Thursday, June 29th, 2017

The Bootstrap Paradox is an ambient piece made using a Fender Squier Bass VI, Electroharmonix Pitch Fork, Sonar, Melodyne Adaptive 5-limit JI algorithm, Native Instrument Guitar Rig 5 “all or none” granular synthesis patch.

Diatoms (harmonic series)

Thursday, May 18th, 2017

Diatoms (harmonic series)

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

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.

fine dividing line

Friday, March 24th, 2017

fine dividing line

(photo by Chris Vaisvil)

Parva in Schismatic Garibaldi 7-limit

Tuesday, February 28th, 2017

Parva played by a Linnstrument using Scala to retune on the fly to Jake Feivald’s Schismatic Garibaldi 7-limit tuning

Schismatic / Garibaldi 7-limit
  0:          1/1               0.000000 unison, perfect prime
  1:         91.362 cents      91.362430
  2:        182.725 cents     182.724870
  3:        203.455 cents     203.455030
  4:        294.817 cents     294.817460
  5:        386.180 cents     386.179900
  6:        406.910 cents     406.910050
  7:        498.272 cents     498.272490
  8:        589.635 cents     589.634920
  9:        680.997 cents     680.997360
 10:        701.728 cents     701.727510
 11:        793.090 cents     793.089950
 12:        884.452 cents     884.452380
 13:        905.183 cents     905.182540
 14:        996.545 cents     996.544970
 15:       1087.907 cents    1087.907410
 16:       1108.638 cents    1108.637570
 17:          2/1            1200.000000 octave