User:Zhenlige/Chromatic notation

This page introduces a proposed notation system centering the 5L 7s chromatic scale. For the meantone chromatic scale 7L 5s, there are two approches to use this system, just like using the standard notation system for the antidiatonic scale.

Intervals

The names according to quasi-diatonic MOS notation are not intuitional, so different names are given here. “Sem” stands for “semitone”.

Interval		Abbrev.	Steps		29edo tuning (steps)	Equivalent diatonic interval
Degree	Quality		L	s
Unison Zero-tone Zero-sem	Perfect	PU	0	0	0	P1
Semitone Monosem / 1-sem	Minor	ms / m1s	0	1	2	m2
	Major	Ms / M1s	1	0	3	A1
Tone Monotone / 1-tone Disem / 2-sem	Minor	mt / m1t / m2s	0	2	4	d3
	Major	Mt / M1t / M2s	1	1	5	M2
Sesquitone Trisem / 3-sem	Minor	mS / m3s	1	2	7	m3
	Major	MS / M3s	2	1	8	A2
Ditone / 2-tone Tetrasem / 4-sem	Minor	m2t / m4s	1	3	9	d4
	Major	M2t / M4s	2	2	10	M3
Fourth Pentasem / 5-sem	Perfect	Pf / P5s	2	3	12	P4
	Augmented	Af / A5s	3	2	13	A3
Tritone / 3-tone Hexasem / 6-sem	Minor	m3t / m6s	2	4	14	d5
	Major	M3t / M6s	3	3	15	A4
Fifth Heptasem / 7-sem	Diminished	dF / d7s	2	5	16	d6
	Perfect	PF / P7s	3	4	17	P5
Tetratone / 4-tone Octasem / 8-sem	Minor	m4t / m8s	3	5	19	m6
	Major	M4t / M8s	4	4	20	A5
Nonasem / 9-sem	Minor	m9s	3	6	21	d7
	Major	M9s	4	5	22	M6
Pentatone / 5-tone Decasem / 10-sem	Minor	m5t / m10s	4	6	24	m7
	Major	M5t / M10s	5	5	25	A6
Undecasem / 11-sem	Minor	m11s	4	7	26	d8
	Major	M11s	5	6	27	M7
Octave / Ditave / Period Hexatone / 6-tone Dodecasem / 12-sem	Perfect	PO / P6t / P12s	5	7	29	P8

Note names

Latin letters ABCDEFG and Greek letters αβγδε are used. Latin letters represent the same notes as diatonic. Each Greek letter represents the note a chroma below the note marked with the corresponding Latin letter. Ups and downs are used for altering Pythagorean commas.

Chromatic	Diatonic
D	D
ε	E♭
↑ε	D♯
E	E
F	F
γ	G♭
↑γ	F♯
G	G
α	A♭
↑α	G♯
A	A
β	B♭
↑β	A♯
B	B
C	C
δ	D♭
↑δ	C♯
D	D