Wednesday, March 11, 2009

JARband @ Concerturtle


^ JARband performs at La Casa Concerturtle, March 6, 2009.


JARband "is" 17 tones per octave. JARband "is" Tonbar Cobja "on" 17-tone tubulong, udderbot, & trombone; AndRnim "on" Cümbüş; robscott "on" drumz.

This arrangement consists of two songs glued together, each taken from Book of Days.

First song, starting at 0:00:

[ @@@ Tz'ikin :: Three Birdsilver ]


gift of insides Saturmorn
numberfingering islandbear
a bribing cup of eggtalk
uglying mudwater between us
bafflheaded vines & targrunt
holes in places
cognitive trombumpetting weed
alley flightgarden
an assembled being
crunchbody

Second song, starting round 1:47:

[ @ Kame :: One Death ]


one quick away th faulters
fixated black & sunpants
resolved to (not) alter
talk to th pocket, thx
hey gravel yo gravel
sleep sleep & antiquity
away, not any place, fanned


We tune to xenharmonic/microtonal scale 17edo (a.k.a 17-equal (divisions of th octave), 17tET, 17-tone equal temperament). Each song takes a different subset of 17 - two different modes of th so-called heptatonic neutral scale: kleeth & dril - both w/ tonic note B.

kleeth


degrees-of-17 between steps: 3 2 2 3 2 3 2
degrees-of-17 from 0: 0 3 5 7 10 12 15 0
interval classes: Perfect Unison ; Major 2nd ; Neutral 3rd ; Perfect 4th ; Perfect 5th ; Neutral 6th ; Neutral 7th ; Perfect Octave
17edo solfege: do re mu fa sol lu tu do
as pitches in B: B C# D-up E F# G-up A-up B

dril


degrees-of-17 between steps: 3 2 3 2 3 2 2
degrees-of-17 from 0: 0 3 5 8 10 13 15 0
interval classes: Perfect Unison ; Major 2nd ; Neutral 3rd ; Diminished 5th ; Perfect 5th ; Major 6th ; Neutral 7th ; Perfect Octave
17edo solfege: do re mu fu sol la tu do
as pitches in B: B C# D-up E-up F# G# A-up B

These scales differ by one two pitches, so altogether we play nine pitches in these pieces. "Neutral" refers to an interval between th more familiar Major & Minor intervals. 17edo has Minor, Major & Neutral 2nds, 3rds, 6ths & 7ths. Those neutral intervals help give th so-called "neutral scale" its particular mood.

No comments: