XPSC 2012 Resources
General Resources, Readings for Students[edit]
Simple free software for drilling intervals: Jim Altieri's Interval Calculator
For JI Praxis Choir: Is What You See What You See
Frank Denyer, "Some Thoughts on Linear Microtonality"
Jules Siegel, "Emancipation of the Higher Harmonic"
This paper contains a list of intervals tuneable by ear: http://adagio.calarts.edu/~msabat/ms/pdfs/tuneable-brass.pdf
"No Promises" Call for Porcupine/22-EDO Scores![edit]
In response to much enthusiasm for Porcupine Temperament and the lack of music written in it, Xenharmonic Praxis Summer Camp 2012 is challenging YOU to compose for our ad-hoc Porcupine Party Pop Band! The Porcupine Party Pop Band will meet during summer camp (August 3-11) in order to "get deep" into a single tuning system, i.e. get our groove on. To do this, we need people, especially porcupine-passionate people to write music that we can try.
Our ensemble is flexible and ad-hoc, but we will have something resembling a rhythm/chord section, a wind section, and vocalist(s). A score with 2-5 staves is ideal. We recommend using our provisional notation, detailed below.
We will be tuning our porcupine to the flavor of 22-EDO. In your composition, you can take advantage of other features of 22-EDO, but we are interested primarily in exploring what it means to play in porcupine.
No promises! You don't have to come to camp to submit a score, and we don't have to do squat unless we dig your song. To submit, link a PDF of your score, and any helpful mockup audio files you might make, at the bottom of this wiki page. If you become a member of the wiki, you can host your file(s) here. Deadline is August 7th, 2012!
Preparing to Play in Porcupine Party Pop Band[edit]
Read up on porcupine and 22edo. We will use A-440 as our reference pitch.
In contrast with the pythagorean-based notation on the 22edo page, here is a provisional porcupine-based notation system:
This system uses porcupine[7] as the basic scale, which has six smaller steps (3/22 of an octave, about 164¢) and one big step (4/22-oct, ~218¢). We will repurpose the letters A-G, such that the distance between any two consecutive letters is that small step, and G-A is the one large step. The accidentals used are the same as the standard 22 sagittal notation.
| degrees of 22edo: | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 22(0) | ||||||||||||||||||||||
| sharpenings: | A/| | A | \ | B/| | B | \ | C/| | C | \ | D/| | D | \ | E/| | E | \ | F/| | F | \ | G/| | G | \ | G# | ||||||||
| naturals: | A | B | C | D | E | F | G | A | ||||||||||||||||||||||
| flattenings: | B!!/ | B\! | C!!/ | C\! | D!!/ | D\! | E!!/ | E\! | F!!/ | F\! | G!!/ | G\! | Ab | A!!/ | A\! |
This Mus2 file can be opened as a template: 22 porcupine template.mus2
Audio version of the Mus2 file, a cycle of Porcupine steps:File:Circleporc.mp3
Porcupine Party Pop Band Songs[edit]
PorcupineScherzo22edo 2012-08-15.pdfsupposed to sound like this: File:22edoporcupinetest1.mp3