Archive for the ‘performance’ Category

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.

11 edo Electric Piano

Saturday, May 13th, 2017

audio only

and a bonus track in 24 edo that is stylistically similar.

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

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

Wilson 17 tone 5 limit (scala archive)

Tuesday, 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)

Sunday, 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

Sunday, 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

For an Imaginary Solo String Ensemble

Sunday, March 26th, 2017


For an Imaginary Solo String Ensemble
Photo by Chris Vaisvil

in 26 edo

Monday, March 20th, 2017



a directed piano improvisation in 26 edo

The Apparition of Government

Sunday, March 19th, 2017


The Apparition of Government is a short Pianoteq improvisation using Petr Parizek 19 note meantone tuning. I took the photo.

! mtsoa19.scl
!
Meantone with stretched octaves, enharmonic scale (Gb to B#)
19
!
70.67242686428
121.28963620165
191.96206306593
262.63448993022
313.25169926758
383.92412613187
454.59655299615
505.21376233352
575.88618919780
626.50339853517
697.17582539945
767.84825226373
818.46546160110
889.13788846538
959.81031532966
1010.42752466703
1081.09995153131
1151.77237839560
1202.38958773297