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Chord Wheel : Circle of 5ths

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Chord Wheel : Circle of 5ths


The Interactive Chord Wheel is an implementation of one of the most basic and significant music theory, 'Circle of fifths' on Android. This app is uniquely designed to represent the relationship between a scale and a chord.
In the screen of this app, the Circle is made up of several concentric rings, which provides various information. By rotating the 2 rings, inner and outer, the needed information can be got easily.
The outer most ring shows information on the scale such as a tonic, a dominant, a sub-dominant, a relative minor, a relative major, and a progression of the degree. The next outer ring shows a series of note's name ordered by the progression of 5th, and the root note of a scale can be set by rotationg this ring. When rotating the outer ring, the inner ring rotates also. The next ring shows a degree of a note and a diatonic chord in that scale. By rotaing the next ring, a chord can be set. If a note name of the outer ring is touched, then a diatonic chord, of which the root note is the note, is set. Instead of the inner chord ring, a key progression ring can be displayed which is very useful when transposing a song to another key. At the center of the concentric rings, a signiture of the scale is displayed.


The direction of the circle
The direction of the key progression on a circle can be set to a CW or a CCW direction by a user.

Switchable Inner Wheel
The inner wheel can be switched when it is needed. A chord wheel, a transpose wheel, and a interval wheel are avalable.

Scale
A major scale and 3 minor scale and church modes are available. The scale tones can be distinguished by its background color. A diatonic chord of the scale can be set by touching one of its scale tones.

Diatonic Scale Chord
Both triads and 7th chords are supported for each scale.

Chord Wheel
Chord wheel is uniquely designed to represent the relationship between a scale and a chord. Most diatonic chords are available. The chord tones can be distinguished by its background color or its mark.

Transpose Wheel
For transposing, a ring of key progression can be displayed instead of a chord ring.

Interval Wheel
Intervals of notes can be found out easily and quickly. Just switch the inner wheel to an interval wheel.

Inversion of a Chord
The inversion of a chord can be played by clicking a button, and also can be seen through the piano view.

Notation System
There are various ways of naming note names. In this app, CDEFGAB, CDEFGAH, and Fixed-Do systems are supported. Also, you can set a prefered accidental, a sharp(#) or a flat(♭).

Piano
Information about a scale or a chord is shown on a 2-octave sized mini piano. It can be played by touching the keys.

Guitar
Information about a scale or a chord also can be shown on a guitar fretboard. It's tunable.

Colors / Marks
The tones of a scale and a chord are associated with the 7 colors of the rainbow. For example, the 1st note is red, and the 7th note is violet.
Also, marks such as ●, △, ★, ◎ represent that it's 1st, 3rd, 5th, 7th note.

Clef / Signature
A signature of the scale is showed at the center of rings. A clef can be set to a treble of a bass.
When the center is touched, user-defined action is performed.

Sounds
The sound of a scale and a chord can be played. A chord sound can be played arpeggio pattern or not.
Piano, E.Piano, and Guitar sounds are included. The bundled sounds are recorded in high quality.

Available scales
Major
Natural / Harmonic / Melodic Minor
Ionian
Dorian
Phrygian
Lydian
Mixolydian
Aeolian
Locrian

Available chords
Major (Triad)
Major 7th
Major 6th
Major 7th aug 5th
Major aug 5th (Triad)
Suspended 2nd (Triad)
Suspended 4th (Triad)
Minor (Triad)
Minor 7th
Minor 6th
Minor Major 7th
Dominant 7th
Dominant 7th aug 5th
Dominant 7th flat 5th
Dominant 7th sus 4th
Diminished (Triad)
Diminished 7th
Minor 7th flat 5th

Recent changes:
Please don't forget leaving a positive comment. No developer wants to keep developing and managing a badly rated app.

read more on
https://plus.google.com/communities/104363645273449669829
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$4.31
93
4.7
User ratings
239
Installs
1,000+
Concerns
0
File size
28364 kb
Screenshots
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About Chord Wheel : Circle of 5ths
The Interactive Chord Wheel is an implementation of one of the most basic and significant music theory, 'Circle of fifths' on Android. This app is uniquely designed to represent the relationship between a scale and a chord.
In the screen of this app, the Circle is made up of several concentric rings, which provides various information. By rotating the 2 rings, inner and outer, the needed information can be got easily.
The outer most ring shows information on the scale such as a tonic, a dominant, a sub-dominant, a relative minor, a relative major, and a progression of the degree. The next outer ring shows a series of note's name ordered by the progression of 5th, and the root note of a scale can be set by rotationg this ring. When rotating the outer ring, the inner ring rotates also. The next ring shows a degree of a note and a diatonic chord in that scale. By rotaing the next ring, a chord can be set. If a note name of the outer ring is touched, then a diatonic chord, of which the root note is the note, is set. Instead of the inner chord ring, a key progression ring can be displayed which is very useful when transposing a song to another key. At the center of the concentric rings, a signiture of the scale is displayed.


The direction of the circle
The direction of the key progression on a circle can be set to a CW or a CCW direction by a user.

Switchable Inner Wheel
The inner wheel can be switched when it is needed. A chord wheel, a transpose wheel, and a interval wheel are avalable.

Scale
A major scale and 3 minor scale and church modes are available. The scale tones can be distinguished by its background color. A diatonic chord of the scale can be set by touching one of its scale tones.

Diatonic Scale Chord
Both triads and 7th chords are supported for each scale.

Chord Wheel
Chord wheel is uniquely designed to represent the relationship between a scale and a chord. Most diatonic chords are available. The chord tones can be distinguished by its background color or its mark.

Transpose Wheel
For transposing, a ring of key progression can be displayed instead of a chord ring.

Interval Wheel
Intervals of notes can be found out easily and quickly. Just switch the inner wheel to an interval wheel.

Inversion of a Chord
The inversion of a chord can be played by clicking a button, and also can be seen through the piano view.

Notation System
There are various ways of naming note names. In this app, CDEFGAB, CDEFGAH, and Fixed-Do systems are supported. Also, you can set a prefered accidental, a sharp(#) or a flat(♭).

Piano
Information about a scale or a chord is shown on a 2-octave sized mini piano. It can be played by touching the keys.

Guitar
Information about a scale or a chord also can be shown on a guitar fretboard. It's tunable.

Colors / Marks
The tones of a scale and a chord are associated with the 7 colors of the rainbow. For example, the 1st note is red, and the 7th note is violet.
Also, marks such as ●, △, ★, ◎ represent that it's 1st, 3rd, 5th, 7th note.

Clef / Signature
A signature of the scale is showed at the center of rings. A clef can be set to a treble of a bass.
When the center is touched, user-defined action is performed.

Sounds
The sound of a scale and a chord can be played. A chord sound can be played arpeggio pattern or not.
Piano, E.Piano, and Guitar sounds are included. The bundled sounds are recorded in high quality.

Available scales
Major
Natural / Harmonic / Melodic Minor
Ionian
Dorian
Phrygian
Lydian
Mixolydian
Aeolian
Locrian

Available chords
Major (Triad)
Major 7th
Major 6th
Major 7th aug 5th
Major aug 5th (Triad)
Suspended 2nd (Triad)
Suspended 4th (Triad)
Minor (Triad)
Minor 7th
Minor 6th
Minor Major 7th
Dominant 7th
Dominant 7th aug 5th
Dominant 7th flat 5th
Dominant 7th sus 4th
Diminished (Triad)
Diminished 7th
Minor 7th flat 5th

Recent changes:
Please don't forget leaving a positive comment. No developer wants to keep developing and managing a badly rated app.

read more on
https://plus.google.com/communities/104363645273449669829

User reviews of Chord Wheel : Circle of 5ths
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Android Market Comments
A Google User
Sep 16, 2014
Excellent This app is so easy to use and so easy to find the sound that you want. I love the piano mode on my Note Pro, and it works well on my Note 3 too. Would like to be able to save a progression of various chords as a MIDI or text.
A Google User
Sep 15, 2014
Just fantastic. Nothing better than this app
A Google User
Sep 11, 2014
Yep
A Google User
Sep 8, 2014
Very useful Still getting use to the app and the theory behind it . It's great to have this with me at all times .
A Google User
Aug 11, 2014
Works 4 me