Chord a Day, February 10th - A9

Learn a new chord everyday of February.

Published: 01 Jan 2013 Updated: 01 Jan 2013Visits: 49Code: ULCAD0210

Topic: Chords Instruments: Ukulele Subjects: Chords

Related LessonAssets

Chord a Day, February 10th - A9

Learn a new Ukulele chord every day of the year. The chord for February 10th is A9.

A9 is a Full Diatonic , chord in the common Major key(s) of: D (V)

A9 is a Full Diatonic chord in the common Minor key(s) of: Dm (V)

A9 is the Dominant chord in the keys of D, Dm. A chord truly functioning as a Dominant chord are Full Diatonic .

A9 is Direct Substitute for A7, the Chord a Day for January 14th .

Secondary Dominant

A9 can a also function as a Secondary Dominant chord in five (5) major keys: ( V of IV , V of V , V of VI , V of II , V of III ) and three (3) minor keys: ( V of IV , V of V , V of VI ). For more information checkout WikipediA : Secondary Chord

WikipediA : A Secondary Dominant (also applied dominant, artificial dominant, or borrowed dominant) is a major triad or dominant seventh chord built and set to resolve to a scale degree other than the tonic, with the dominant of the dominant (written as V/V or V of V) being the most frequently encountered. The chord that the secondary dominant is the dominant of is said to be a temporarily tonicized chord. The secondary dominant is normally, though not always, followed by the tonicized chord. Tonicizations that last longer than a phrase are generally regarded as modulations to a new key (or new tonic).

In a Blues chord progression a seventh chord can function as the I IV and/or V .

Harmonic Analysis, Scales and Modes

All harmonic and scale analysis utilizes Roman Numerals related to its major or parallel major scale (I II II IV V VII VII, the 1 2 3 4 5 6 7 of the major scale). Technically, the modes are the same or can use a number relative to its parallel major scale. You will see the latter more than the former.

Open Position Chords

Today's chord, A9 is an Open Position chord.

Open Position Chords are any chord in the first four frets that include at least one open string.

Core 4-part, a.k.a. Jazz Chords

Today's chord, A9 is one of, or based on one of, the Big Six Core Jazz chords for creating your 4-part, contemporary chord foundation and Life Beyond the Third Fret.

Learn a New Chord Each Day!!!

This Learn a New Chord Each Day!!! series of lessons was created and published in 2013 (10yrs ago) and has been added to an expanded ever since. 2020 brought videos to the show. 2023 is bringing more Harmonic information.

For a further exploration of this chord and its movable forms visit the Movable Ukulele Chords Lesson Series page.

To find out even more than you would ever need to know about a A9 chord — continue reading .

Chord Type(s): Major 5-part

Chord Categories: Open Position

ULCAD0210 Chord_grid_legand.png

Related Lesson: Understanding a Chord Diagram

Open Position chords typically do not show the location of the root or letter name of the chord as these chords are the first chords a ukulele player learns and are almost entirely learned by shape and sound – hopefully, the chords' name. Later on, one develops the ability to determine the location of the chord root(s) or letter name within the chord.

Standard Music Notation and TAB

ULCAD0210

Standard music notation and TAB for C Tuning, Low and High G variations

The same numbering notation of TAB can be used to describe the open strings and frets to be played when using text only notation or verbal communications. Using an open position C as an example, we can describe it as 0003 indicating open strings four, three, and two with fret (3) being fingered on string one. An open position D7 indicated as 2020.

As you can see that are numerous ways to describe a chord, either verbally, Standard Music Notation , TAB , in text, graphically using a Chord Grid , etc.

Derived From

Today's chord, A9 is a derived chord from A7 . Take any chord progression with A7 in it and explore substituting A9 for A7.

View the A7 chord a day page...

Chord Spelling

Chord Spelling is simply knowing what the notes, the chord tones of a chord are.

The notes of all chords can be determined from its corresponding major scale based on the root of the chord and numeric formula.

The notes for A9 are:

A C# E G B

The chord tones are the 1 3 5 b7 9 scale degrees of the parent A Major Scale .

A9 is direct substitute for A7.

Recommended Fingering

LH_fingersAlthough additional fingerings are possible for many chords. Fingering for any given chord depends the science of how our fingers work and on the harmonic context the chord is being used in, what was the previous chord and what's the next chord. The goal is to play all the notes right behind the frets when possible. Remember longer fingers can reach the lower strings better and finger two and stack on finger three and finger three can stack on finger four.

Although you can play any chord with any finger — as long as it's yours, the recommended fingering for A9 is:

Recommended Fingering
0 2 0 3

Alternate Fingering(s)

Here are a few alternate fingerings for today’s A9 chord depending on the context the chord is being used.

Alternate fingering(s) for A9:

  • 0 2 0 4
  • 0 1 0 2 - Not an efficient fingering, when the longer middle finger could have reacher the lower string three.

Fingering Notation

Fingering notation for a chord using text only, without using a chord grid, is typically done using the finger numbers from left to right, string four to string one (nose to toes). Here is the text notation for January 1st C chord.

A Typical text representation of a chord fingering without using a chord grid.

Note: A Zero (0) fingering notation represents an open string that doesn't require using a finger.


Fingering Chords

Additional alternate fingerings might be possible for selected chords. If there isn't an overwhelming musical reason for one fingering over another, let efficiency be the determining factor. Something as simple as longer fingers can reach the lower string four and three goes a long way to being efficient when switching chords.

Factors such as playing notes right behind the fret takes less effort than in the middle of the fret. Less effort leads to overall efficiency in play, lower maintenance for maintaining your technique and efficiency leads to speed. This can help in determining what finger to use. Finger three can overlap finger four and finger two can overlap finger three a little allowing them to get closer to the fret.

Remember – the thumb's primary role is to support the fingers – not play notes. Think of the thumb as a Stagehand. He is unseen, doesn't get any lines BUT is a critical member of the team.

Chord Construction, Notes and Intervals

ALL chords can be be constructed based on the their intervals relative to the major scale of the root or letter name of the chord. The individual names of the notes of the chord can also be determined from the same scale.

The chord tones for A9 are: A C# E G B

A9 is the 1 3 5 b7 9 of the A Major Scale based on the root (A) of the chord.

9th Chords

A 9th chord is a 5-part chord.

For a 5-part 9th chord, the root is implied and displaced for the ninth. Optionally the 3rd of a 7th chord can be lowered two frets (a whole step) for 1 9 5 b7. This really works if you have already played the chord with the third present and establishing the color of the chord.

To create a ninth chord raise the root of a 4-part chord two frets. This applies to a 7th, maj7, m7, 6, m6, m7b5, etc… Most all 4-part chords can be turned into ninth chords. For a 7th chord this would be a 9 3 5 b7.

This same process can be applied to a triad by raising the root two frets. For these chords they are typically called add2 or add9 chords.

Chords are pretty flexible and can be implied by containing the notes of the chord that make it different then another chord types with the same root. Take C and Cm, C is C E G and Cm is C Eb G. The third of the chord the E or Eb is a color tone and is responsible for making a major chord different sounding then a minor chord with the same root.

Next Steps

After memorizing todays A9 chord and able to switch in time with other chords. The next step is adding various Strums , Fingerpicking patterns, and exploring the Movable Chord versions of today's chord, to your ukulele skills.


End of Lesson - Thanks, Hope You Enjoyed It!

Related Lessons, Videos, Lesson Series, Songs, Books & Reference Charts, Resources & Assets, Workshops are below.

Related Lessons

Related Lessons for Chord a Day, February 10th - A9.

Comparing the High G and Low G, C Tunings

Exploring the differences in these two common C tunings, both the high G reentrant tuning associated with he ukulele and the low G variation. There are benefits to exploring both C tunings. Good excuse to have more ukes -:)

Basic Open Position `Ukulele Chord Chart

A core set of basic ukulele chords that ALL Ukulele players should know in the five common keys of C, G, D, A and E. With the possible seventh chords for the same common keys. The chart is organized in common keys and covers basic chords in these keys.

Chord Shapes and Learning `Ukulele Chords

Pick up any chord dictionary, and one thought that should go through your mind is - TOO MANY CHORDS There is now way to memorize all those shapes. It would be better off learning how they came up with all those shapes. Most chord dictionaries are also just like pages transposed to all possible keys.

Learning the `Ukulele Fingerboard (Finally!!!)

Most players struggle with learning the names of the notes of the ukulele fingerboard. There doesn't seem to a pattern and notes repeat. There is an easy way and "it's easier that you think." Most players know the names of the open strings for their favorite tuning.

Naming Chords on `Ukulele

A Chord can have alternate names based on how it is being used. A chord's function is an important determining factor in naming a chord. So unless you know the harmonic function of a given chord, you might not be able to accurately name it.

Natural, Sharp and Flat Notes of the `Ukulele Fingerboard - C Tuning

Standard music notation, the natural, sharp and flat notes of the ukulele fingerboard for C tuned ukuleles. Covers both high C and low G tuning variations.

Movable `Ukulele Chords

A series of weekly ukulele lessons originally presented throughout 2007 on movable ukulele chords as the "Ukulele Chord of The Week Series". Based on the Ukulele Chords book by Curt Sheller (me). It takes the open position chords and shows the movable form and the variations.

Reading Ukulele TAB - Alternate Notation

"TAB" or "Tablature", is an alternate form of musical notation, which tells players where to place their fingers on a particular instrument rather than which pitches to play. TAB is sort of a secret language between guitar players and ukulele players. Although a shortcut to getting started it actually serves to alienate one from the rest of the music world.

Standard Music Notation

Music notation or musical notation refers to various systems of writing music. Diverse systems of musical notation have developed in various cultures. In fact, many cultures simply do not notate their music in any form.

The Learning Process - The Mind, Hands and Ears

For music and learning an instrument like the ukulele or guitar, it's all about the making the connection between your Mind, your Hands, and your Ear. When listening to music, we enjoy it at the tempo the composer or artist intended, in real time. Only the ear is involved in listening. This is passive listening and you're simply enjoying the music. This is what we do every day and it's what draws us to want to learn a musical instrument.

The Harmonized Major and Minor Scale Charts

The "Major Scale" or Ionian scale is a diatonic scale, made up of seven distinct notes, plus an eighth which duplicates the first one octave higher. In solfege these notes correspond to the syllables Do, Re, Mi, Fa, Sol, La, Ti/Si, (Do), the Do in the parenthesis at the end being the octave of the root.

Transposing Individual `Ukulele Chords

"Transposition" is the process of moving a note, chord, scale or any musical passage from one key to another key. All music can be transposed, from a single note to a complex musical score. This lesson deals with transposing chords on ukulele and transposing chords.

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