From the
slack key paradise of Hawai'i
where diversity of tunings is a way of life, comes...
phpMyChordOpen Source 12 Tone Equal Temperament Visualization Tools including:
Gnu Public Liscense |
More 12TET
scales and chords, and more tunings
discovered by this project than anywhere else on the planet! phpMyChord Aims to provide:
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Required Technologies:
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Installation Instructions:
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Note: C, Db, D, E, F, Gb, G, Ab, A, Bb, or B (flatted form is currently preferred since it simplifies the Base 12 operations).
Sci: Scale, Chord or Interval. Consists of Note and SciCode separated by space character. e.g. “C -” is C Minor Chord.
SciDegree: 1 (smallest), b2, 2, b3, 3, 4, b5, 5, b6, 6, b7, or 7 (highest). Sometimes called scale degrees.
SciCode: preferred code of SciType. e.g. “-” is the SciCode of SciName “Minor Chord” in my convention
SciName: preferred name of SciType. My choice is the default SciName.
SciSpelling: Comma delimited SciDegrees, omitting the 1, ordered from smallest to highest. e.g. b3,5 is the SciSpelling for SciName “Minor Chord”.
SciMode: new SciType derived from a given SciType starting on a different SciDegree.
Mode: new Sci derived from a given Sci starting on a different Note.
SciIntervalForm: A SciType written in terms of intervals. e.g. “-” is “d3 a3”
SciNumericIntervalForm: like the SciIntervalForm but written with the numeric equivalents e.g. “3 4” as follows:
Interval Name |
SciCode |
Numeric Equivalent |
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Minor Second |
d2 |
1 |
Major Second |
n2 |
2 |
Minor Third |
d3 |
3 |
Major Third |
n3 |
4 |
Perfect Fourth |
P4 |
5 |
Tritone |
T |
6 |
Perfect Fifth |
P5 |
7 |
Minor Sixth |
d6 |
8 |
Major Sixth |
n6 |
9 |
Minor Seventh |
d7 |
10 |
Major Seventh |
n7 |
11 |
SciSequence: comma delimited Sci list. e.g. “C -,D M,A 7”. Can be transformed into Sci using sciSequence2sci() function.
Tuning: comma delimited list of notes of a stringed instrument. e.g. ukulele is “G,C,E,A”
StringPosition: numeric representation the fret of a string on a stringed instrument. “0” means open string. “x” means muted string.
SciPosition: a comma delimited list of StringPositions representing a fingering position of a particular chord for a particular tuning. SciPosition “0,0,0,3” is Sci “C M” for tuning “G,C,E,A”. SciPosition2sci transforms a SciPosition to a Sci.
NoteCircleOfFifths: Notes arranged in a circle starting with C and incrementing by a Perfect Fifth interval (7 SciDegrees). C, G, D, A, E, B, Gb, Db, Ab, Eb, Bb, and F. Associated with the Zodiac with C as Aries.
SciDegreeCircleOfFifths: 1, 5, 2, 6, 3, 7, b5, b2, b6, b3, b7, and 4. Associated with the solar system bodies: Sun (1), Mercury (5), Venus (2), Moon (6), Mars (3), Jupiter (7), Saturn (b5), Uranus (b2), Neptune (b6), Pluto (b3), Sedna (b7) and Quaoar (4).Mode: Sci derived from another Sci starting on a different Note.
Note |
Western Zodiac |
SciDegree |
Solar System Object |
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C |
Aries |
1 |
Sun |
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G |
Taurus |
5 |
Mercury |
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D |
Gemini |
2 |
Venus |
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A |
Cancer |
6 |
Moon |
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E |
Leo |
3 |
Mars |
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B |
Virgo |
7 |
Jupiter |
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Gb |
Libra |
b5 |
Saturn |
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Db |
Scorpio |
b2 |
Uranus |
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Ab |
Saggitarius |
b6 |
Neptune |
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Eb |
Capricorn |
b3 |
Pluto |
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Bb |
Aquarius |
b7 |
Sedna |
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F |
Pisces |
4 |
Quaoar |