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A Guide To The Chromatic Scale

If I mention the word ‘scales’ to some students of music, they will recoil in fear. That’s understandable, considering the variety of scales that there are. However, I’ve decided to give you a guide to the chromatic scale, not one of the most commonly used but is incredibly useful to understand. But before that…

Why So Many Scales?

I am not going to go too much into this because I want to concentrate on the Chromatic scale. However, I should mention some of the better-known ones…

  • Pentatonic scale – 5 notes
  • Whole-tone scale – 6 notes
  • Diatonic scale – 7 notes
  • Heptatonic scale – 8 notes (the Diatonic plus the Octave)
  • Octatonic or Diminished scales – 8 notes
  • Chromatic scale – 12 notes

There are, of course, differences between major and minor scales. But there is only one scale that uses all the notes, or pitches, available, and that is the Chromatic.

What is the Chromatic scale?

What is the Chromatic scale

If you look down at the keyboard of a piano, organ, or similar, the Chromatic scale is all of the white and black keys in one octave.

For example, if you start with C and play every note, white and black, you will play 12 notes, and that is your Chromatic scale. If you were to carry on, the next would be the 13th note which would be the start of the next Chromatic scale. There are, therefore, twelve notes.

All in Semitones

Unlike the notes in a major or a minor scale, the notes are the same distance apart. That is one semitone or half step. Each note is, therefore, a semitone or a half step above, or below, the last note.

I say below because a Chromatic scale can be played in ascending order or descending. But whichever way you choose, the same rules will apply. One semitone, or half step at a time.

For a more in-depth explanation, I recommend The Complete Book of Scales, Chords, Arpeggios & Cadences: Includes All the Major, Minor (Natural, Harmonic, Melodic) & Chromatic Scales.

Let’s take in some examples

If we are to play an ascending Chromatic scale in C, then the notes would be:

C – C# – D – D# – E – F – F# – G – G# – A – A# – B. Giving you twelve notes.

But you can play a Chromatic scale starting from anywhere. The same principles will apply. The scale rises by one semitone or half step each time.

Starting with E for the ascending scale, we would have:

E – F – F# – G – G# – A – A# – B – C – C# – D – D#.

No examples for descending scales, I hear you ask? We will deal with that later as there is a ‘rule’ about that. Wouldn’t be music without its ‘rules,’ would it?

From the Greek

From the Greek

Chroma is a Greek word describing color. The original function of the Chromatic scale in music was to decorate and embellish the sound of the music. Up until the late 1700s, music was usually written in formal keys. Though there were some exceptions as composers experimented. Bach and Mozart as examples.

These formal keys could be major or minor, but the patterns were set. The composers would use what they called “accidentals” to operate outside of the notes of the keys. They did this to add some “color and embellishment” to the music. Some chroma, if you like.

But during the later Classical and Romantic periods, composers wanted more freedom of notation. They wanted to move away from writing everything in a set key. This led to Chromatics being incorporated into the music.

Atonal Music

This resulted in atonal music, noted for its lack of tonality. Tonal music was key-centered. It would start and finish in its key and its harmonies and structures based around its designated key.

Atonal moves away from that. There is no central key or tone. The only rule is, “Does one tone sound good with the next?” And then where two are played, with each other. For this, composers tended to use the full length and breadth of the Chromatic scale.

Where the notes in tonal structures rely on each other, in atonal composition, the notes of the Chromatic scale do not, and operate independently. To learn more, I suggest you check out Other Harmony: Beyond Tonal and Atonal.

Ascending and Descending Chromatic Scales

Time for some rules. Yippee! This wouldn’t be A Guide To The Chromatic Scale without them. Let’s return to how we write the scale down. We have already given examples of an ascending Chromatic scale. You may have noticed that where necessary, only sharps were used to raise the notes by a semitone.

  1. Rule One – sharps should be used if you are writing a chromatic scale that is ascending.
  2. Rule Two – flats should be used when writing a chromatic scale that is descending.

As an example of a descending chromatic scale starting in C, the notes would be written:

C – B – Bb – A – Ab – G – Gb – F – E – Eb – D – Db.

In practice, some composers may flaunt these rules occasionally for a variety of reasons. But for your musical exams saying to the examiner, “But Beethoven did it” won’t cut it. They will want to see you adhering to the rules.

Some more rule regarding Chromatic scales

Firstly, there must be one note on every pitch. By that, I mean a note on every stave line or every space between the lines. Secondly, you cannot have more than two notes written on any one pitch. You can have the natural note and a sharp or flat, but that is all.

As an example, you could have ‘G’ followed by ‘G#’ or ‘Gb.’ The next note would then be either ‘A’ if it were ascending or ‘F’ if it were descending.

Chromatic Solfege

Chromatic Solfege

So what is Solfege, or to be precise, Chromatic Solfege? You will probably recognize it as:

Do – Re – Mi – Fa – Sol – La – Ti – Do.

It is a system devised to give names to the syllables of a major scale. But that is a scale that only has seven notes (Diatonic) or 8 (Heptatonic) if you include the octave (the final Do). There have to be extra syllable names to accommodate the extra Chromatic notes. These I have made bold to make them easier to see:

do- di– re- ri– mi- fa- fi– sol- si– la- li– ti- do.

Those are the syllables applied when the scale is ascending. When it is descending, it is as follows:

do- ti- te– la- le– sol- se– fa- mi- me– re- ra– do

If you want to learn how to practice using Chromatic Solfege, I highly recommend Chromatic Scale to get started.

The Chromatic Scale in Classical Music

You would expect to find examples of the chromatic scale in Classical music, and there are plenty. In its earliest forms, Bach used it occasionally. And it became a technique that some composers up to and including Mozart employed.

As we move forward, Beethoven, of course, made good use of it, but when we move into the time of Chopin and Rimsky-Korsakov, it is common practice.

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A Guide To The Chromatic Scale – Final Thoughts

Today, a lot of modern, western music is written using Chromatic scales. And the Atonal aspects are, of course, common in Jazz. It is something some composers and musicians use without thinking about it. It has become commonplace, and that has added ‘color’ to our music.

Until next time, let your music play.

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About Jennifer Bell

Jennifer is a freelance writer from Montana. She holds a BA in Creative Writing and English, as well as an Associate of Applied Science in Computer Games and Simulation Design.

Her passions include guitar, bass, ukulele, and piano, as well as a range of classical instruments she has been playing since at school. She also enjoys reading fantasy and sci-fi novels, yoga, eating well, and spending time with her two cats, Rocky and Jasper.

Jennifer enjoys writing articles on all types of musical instruments and is always extending her understanding and appreciation of music. She also writes science fiction and fantasy short stories for various websites and hopes to get her first book published in the very near future.

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