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

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)

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

little life

April 27th, 2017

Audio only

20 edo electric guitar video performance.

April 23rd, 2017


audio only

Wilson 17 tone 5 limit (scala archive)

April 18th, 2017



A short piano improvisation with the DIY 17 note midi controller and the tuning below.
photo by Chris Vaisvil

! wilson_17.scl
!
Wilson's 17-tone 5-limit scale
17
!
135/128
10/9
9/8
1215/1024
5/4
81/64
4/3
45/32
729/512
3/2
405/256
5/3
27/16
16/9
15/8
243/128
2/1

Mississinewa Lake (17 edo)

April 16th, 2017


Mississinewa Lake (17 edo) was created by sampling my electric aeolian harp and using Kontakt to play the sample using the built in note per octave function on my DIY 17 note per octave midi controller. Effects were added in Kontakt and Sonar.
audio only

3 Movements for Piano in Semaphore [9] Tuning

April 9th, 2017


3 Movements for Piano in Semaphore [9] Tuning is an edited performance. Movement 1 opens, movement 2 at 57 seconds, movement 3 at 2:33, total length 4:45

Picture by Chris Vaisvil

This tuning is slightly different from the on on the xenharmonic wiki. 

! semaphore[9].scl
!
9 note scale from some Semaphore temperament. 9 & 5 Fokker block. Generated by http://x31eq.com/temper/
9
!
198.933
397.867
449.913
648.847
700.894
899.827
951.874
1150.807
1202.854

The 19th Sky of Semaphore

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
!
semaphore19
 19
!
 51.92500
 103.85000
 155.77500
 250.38500
 302.31000
 354.23500
 448.84500
 500.77000
 552.69500
 604.62000
 699.23000
 751.15500
 803.08000
 855.00500
 949.61500
 1001.54000
 1053.46500
 1105.39000
 2/1

Harmonic Series Piano

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.

Unboxed – for percussion, bowed piano and manipulated voice

April 1st, 2017



Unboxed – for percussion, bowed piano and manipulated voice in 10,15,and 5 edo