A brief improvisation on the Axis-49 isomorphic keyboard.  The scale is a subset of 29 equal divisions of the octave, steps 5-2-4-2-4, repeating at the 17th degree (perfect fifth of 704 cents), for those interested.

Improv in 29edo :: 2013-10-15

A first draft of a round in 31-tone equal temperament, written to try out a septimal chord progression.  Future versions may have words, may be nicely recorded with vocals, or may never exist.

Septipants (First Draft Demo)

I have the great good fortune to live a few blocks down from xenharmonic legend Daniel Stearns, who lent me his tenor ukelele, refretted to an 8-tone-per-octave subset of 13-tone equal temperament.  The open string tuning, for those interested, was *not* a subset of 13-equal, but rather an approximation of the harmonic series 8:9:11:12, that is, the frequency ratios 1/1, 9/8, 11/8 and 3/2.  I recorded this improvisation in bed on March 13, 2014.  It is dedicated to Dan Stearns.

Rubble: a Xenuke Unfolded

Keyboard improvisation by Andrew Heathwaite.

Jupiter's Rations

Paper Hats

A short something with Chris Vaisvil's 15-tone guitar in the hands of Andrew Heathwaite.  Thanks, Chris!

Fifteen Flowermarks

Sky - Stuttered

A music in 11 equal divisions of the octave!

flapdash

Some music in 13 equal divisions of the octave!

darkdank

A jangly canon in 14 equal divisions of the octave!

Tassletone Mountaineers

Just a track in 80edo to usher in the New Year (2025)!

Flarn Squared in 80edo

A microtonal canon written in the Tuning of the Month for January 2025 -- 37 equal divisions of the octave.

https://en.xen.wiki/w/Tuning_of_the_Month_Club

Thursnella

sQuid fLayvr

A polyrhythmic canon in 21edo for the Tuning of the Month Club!

21 Skillet Gravy

A 34-tone canon written for the Tuning of the Month Club on the Xenharmonic Alliance Discord!

The Forkening

A surreal trundle through 27edo.  Composed for the Tuning of the Month Club, September 2025!

Travel Notes in 27edo

A spiral canon in 28 EDO for Tuning of the Month Club, October 2025!

Glasses Banana Bear Coffee

Another short spiral round, this time in 53edo!

Created for the Tuning of the Month Club, November 2025.

Ladderly

Some songs on the 12edo guitar inspired by the teachings and practices of Buddhism.

Waves

Stranger Stranger

Rest Here

It's Good

Five Remembrances

All These Beloved Beings

May All Beings Be Free

Lyrics by Carey Smith.  An anthem to awaken our animalness.

Crow Song (guitar)

A song to practice mudita, that is, the great quality of sympathetic joy.

Mudita

An original children's song written in 2016.

You Are Welcome Here

A simple exercise in singing the intervals of the 11-limit tonality diamond in the context of background harmonic series chords and a moving fundamental.  The bottom note in the melody line stays the same while the top line moves up gradually, first leaping, then stepping.  The solfege system for singing along is as follows:

12/11: fu-so, fu-so
11/10: mi-fu, mi-fu
10/9: re-mi, re-mi
9/8: do-re, do-re
8/7: ta-do, ta-do
7/6: so-ta, so-ta
6/5: mi-so, mi-fu-so
11/9: re-fu, re-mi-fu
5/4: do-mi, do-re-mi
14/11: fu-ta, fu-so-ta
9/7: ta-re, ta-do-re
4/3: so-do, so-ta-do
11/8: do-fu, do-re-mi-fu
7/5: mi-ta, mi-fu-so-ta
10/7: ta-mi, ta-do-re-mi
16/11: fu-do, fu-so-ta-do
3/2: do-so, do-re-mi-fu-so
14/9: re-ta, re-mi-fu-so-ta
11/7: ta-fu, ta-do-re-mi-fu
8/5: mi-do, mi-fu-so-ta-do
18/11: fu-re, fu-so-ta-do-re
5/3: so-mi, so-ta-do-re-mi
12/7: ta-so, ta-do-re-mi-fu-so
7/4: do-ta, do-re-mi-fu-so-ta
16/9: re-do, re-mi-fu-so-ta-do
9/5: mi-re, mi-fu-so-ta-do-re
20/11: fu-mi, fu-so-ta-do-re-mi
11/6: so-fu, so-ta-do-re-mi-fu

11-limit singtervals

Counterpart to 11-limit singtervals -- a way of practicing the consonant intervals of 9-limit just intonation.  The exercise takes you through the following list, allowing you to sing each interval ascending by leap and by step, following the harmonic series:

10/9: re-mi, re-mi
9/8: do-re, do-re
8/7: ta-do, ta-do
7/6: so-ta, so-ta
6/5: mi-so, mi-so
5/4: do-mi, do-re-mi
9/7: ta-re, ta-do-re
4/3: so-do, so-ta-do
7/5: mi-ta, mi-so-ta
10/7: ta-mi, ta-do-re-mi
3/2: do-so, do-re-mi-so
14/9: re-ta, re-mi-so-ta
8/5: mi-do, mi-so-ta-do
5/3: so-mi, so-ta-do-re-mi
12/7: ta-so, ta-do-re-mi-so
7/4: do-ta, do-re-mi-so-ta
16/9: re-do, re-mi-so-ta-do
9/5: mi-re, mi-so-ta-do-re

9-limit singtervals

http://oeis.org/A002487
https://en.wikipedia.org/wiki/Harmonic_series_(music)

Andrew Heathwaite

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