In one sentence: From G, the chromatic scale joins white and black keys in twelve semitones and teaches you to prepare a clear arrival.

The complete route

• Formula: H-H-H-H-H-H-H-H-H-H-H-H; every step is a semitone.
• Notes: G-G#-A-A#-B-C-C#-D-D#-E-F-F#.
• G starts this exercise, not an exclusive key: the route uses all twelve pitches.

Catalog fingering

Right hand: up 1 octave 1-3-1-3-2-1-3-1-3-1-2-3-1; down 1-3-2-1-3-1-3-1-2-3-1-3-1.

Left hand: up 1 octave 1-3-1-3-2-1-3-1-3-2-1-3-1; down 1-3-1-2-3-1-3-1-2-3-1-3-1.

Two octaves, right hand: up 1-3-1-3-2-1-3-1-3-1-2-3-1-3-1-3-2-1-3-1-3-1-2-3-1; down 1-3-2-1-3-1-3-1-2-3-1-3-1-3-2-1-3-1-3-1-2-3-1-3-1.

Two octaves, left hand: up 1-3-1-3-2-1-3-1-3-2-1-3-1-3-1-3-2-1-3-1-3-2-1-3-1; down 1-3-1-2-3-1-3-1-2-3-1-3-1-3-1-2-3-1-3-1-2-3-1-3-1.

Pause after every four notes. At B-C, do not move the hand looking for a black key that is not there.

Approach a target note

The chromatic scale does not offer its own diatonic chords; it is more useful as a short route toward a chord tone or melody note.

1. Play a G major chord: G-B-D.
2. Before D, play B-C-C#-D.
3. Hold D longer and make it more present than the approach notes.

In walking-bass figures or connecting melodies, listen for one, two, or three semitones arriving at a stable note. The destination is what makes chromaticism musical.

Common mistakes

• Skipping B-C or E-F: name both pairs while you practice.
• Tensing the thumb on black keys: play farther into the keyboard with a loose hand.
• Making every step equally loud: give more weight to the target note.
• Practising only up: descend with the written fingering and equal attention.

Checklist

• I can play all twelve notes from G and return to G.
• I keep the pulse through B-C and E-F.
• I can play one octave in both hands with the listed fingers.
• I can use B-C-C#-D to arrive deliberately at D.
• I can name the target note my chromatic fragment prepares.