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Steps, Tones & Semitones

 

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Last updated on: 2009-08-19 3:47 PM

Ever wondered what steps, tones and semitones are? Well today's lesson will reveal all so lets dive right in.

  1. Contents
  2. Steps, tones & semitones
  3. Summary
  4. Related lessons & resources

Steps, Tones & Semitones

In order for musicians to communicate musical ideas and concepts accurately, a system has developed whereby we use the terms tone or whole step, and semitone or half step, that not only describe the steps physically on the guitar, but also on the musical staff. A whole step, or tone is a chromatic step of two notes, or for guitar two frets, for instance: F to G which skips over FSharp symbol (see figure 1.a below). A semitone, or half step is a chromatic step of one note, or for guitar one fret, for instance: D to EFlat symbol (again see figure 1.a below). A semitone is also the smallest harmonic interval that exists is Western music, and a series of twelve semitones make up our entire musical alphabet.

So when a musician says "move that riff down a whole step", it means to lower the riff by two frets or a tone. Sometimes it is necessary to use the term tone-plus-semitone to describe a step of three semitones. Many musicians communicate scales by using whole step, half step terminology, for instance: a natural minor scale can be written in shorthand as W-H-W-W-H-W-W where the W represents a whole step and an H represents a half step.

Guitar fretboard showing steps and tones

 

Below you will find a table that shows the terminology used, it's up to you as to which set of terms you use, I would suggest learning both and settling on one.

Stepwise Tonewise Example
Half Step Semitone G to AFlat symbol
Whole Step Tone G to A
Whole-plus-half-step Tone-plus-semitone G to BFlat symbol
Two Whole Steps Two Tones G to C

Summary

Well this brings another lesson to an end, understanding steps, tones and semitones is pretty easy but if your still stuck then follow some of the external resource links below for further explanation.

Cheers & enjoy!

Related lessons & resources

External Resources