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Music theory offers a fascinating array of scales that musicians can explore to create unique sounds and textures. Among these, symmetrical scales stand out for their balanced and repetitive patterns, providing a distinctive sonic character. This article takes a comparative look at whole tone scales and other symmetrical scales, focusing on their structure, sound, and application for bass players.
Understanding Symmetrical Scales
Symmetrical scales are built using intervals that repeat at regular intervals, creating a pattern that can be transposed or rotated to produce different tonal centers. These scales often lack the traditional major or minor tonality, resulting in a more ambiguous or dreamlike sound. The two most common types are the whole tone scale and the octatonic scale.
The Whole Tone Scale
The whole tone scale consists entirely of whole step intervals. It contains six notes per octave, with each note separated by a whole step. This structure gives it a very symmetrical and floating quality, often associated with impressionist music and jazz.
For bass players, the whole tone scale offers a unique palette for creating ambiguous and shimmering lines. Its symmetrical structure makes it easy to transpose, but it also limits the scale’s ability to establish traditional tonal centers.
Example of Whole Tone Scale
- C – D – E – F# – G# – A# – (C)
This scale can be played starting from any root note, maintaining the same interval pattern.
Other Symmetrical Scales
Besides the whole tone scale, other symmetrical scales include the octatonic scale and the diminished scale. These scales also use repeating interval patterns but differ in their structure and sound.
Octatonic Scale
The octatonic scale alternates whole and half steps, creating an eight-note scale. It has a darker, more tense sound, often used in jazz and film music.
Example (starting on C): C – D – D# – F – F# – G# – A – B – (C)
Diminished Scale
The diminished scale is similar to the octatonic but begins with a half step, creating a symmetrical pattern of alternating half and whole steps. It is widely used in jazz improvisation.
Applications for Bass Players
Symmetrical scales provide bass players with tools to craft interesting lines that break away from traditional major/minor tonalities. Their repetitive patterns can add a sense of mystery, tension, or otherworldliness to music.
Using these scales, bassists can explore:
- Creating modal or ambiguous harmonies
- Adding color to improvisations
- Developing unique melodic motifs
Incorporating symmetrical scales into practice can expand a bassist’s harmonic vocabulary and inspire new compositional ideas.