Karl Golden - ONLINE MUSIC EDUCATION

The harmonic minor scale is almost identical to the natural minor scale but has one key difference: it has a raised 7th note. This single change creates a strong sense of tension and an exotic, haunting sound that makes the harmonic minor scale stand out.

• Formula: Root - Major 2nd - Minor 3rd - Perfect 4th - Perfect 5th - Minor 6th - Major 7th

The diagram below shows the harmonic minor scale on one string so you can see the interval spacings. 

1. Unique, Dramatic Sound: The raised 7th gives the harmonic minor scale a dark, exotic feel that works well in creating tension and drama in your lines.
2. Perfect for Minor Chord Progressions: The harmonic minor scale’s strong leading tone (7th) helps drive a sense of resolution back to the root, ideal for minor-key progressions.
3. Versatile Across Genres: From classical to metal and jazz, the harmonic minor scale is used in many musical styles, making it a great tool for bassists looking to expand their musical vocabulary.

The diagram below shows a comparison of the natural minor scale (Aeolian mode) and Harmonic Minor scale. Notice only one difference? Crazy how this one change can make such a different exotic sound over a minor chord.

Like other scales, the Harmonic Minor scale can be played across the fretboard in five main shapes. Learning these shapes allows you to access the harmonic minor scale in any key, making it easy to incorporate into your playing. These shapes are moveable to any key!

Below you will find the five harmonic minor scale shapes that is essential for you to learn how to play and connect inside out. 

Here are a few exercises to help you develop comfort and fluency with the harmonic minor scale:

1. Play Each Shape Slowly: Start by playing each shape at a slow pace, focusing on clean, accurate notes. Listen for the unique sound of the raised 7th as you play.
2. Connect the Shapes: Practice moving between positions to get comfortable playing the scale across the fretboard.
3. Highlight the Raised 7th: Emphasize the raised 7th in your lines to develop an ear for the harmonic minor scale’s signature tension.

The video below shows an example exercise from my book “The Ultimate Bass Scales Book” In this exercise we ascend and descend through shape one of the Harmonic Minor shapes.