About Tritones (from Getting Inside Harmony 2)
Hey again. Michael Moyes, Student Advisor for Berkleemusic here. I have been furthering my harmonic knowledge this term and have been spending some time thinking about Tritones and their numerous functions in music of all types.
A tritone is a musical interval of three whole steps, or 6 half steps. The interval is also known as an augmented fourth, a dimished fifth, or the ‘devil’s interval’ due to it’s dissonant sound.
This interval has been and continues to be utilized in music of all styles and can be found in tunes like “Maria” (from West Side Story), “Purple Haze, “and even Rachmaninoff’s famous Prelude in C# minor.
Tritone substitutions in chord progressions use the same concepts used to build tritones, but the focus is on the harmonic level, not melodic. These substitutions can be used in 12 Bar Blues, ii V I progressions, and many more complex changes as well.
Let’s take a standard ii V I progression in the key of C major to show a tritone substitution in action.
The typical progression would be as follows…
|
Dmin7
|
G7
|
CMA7
|
The chord substituted in the progression will be the dominant 7th, the G7 chord. Three whole tones above the note G is the note Db, which will be our new root for our dominant 7th chord.
The new progression would be as follows…
|
Dmin7
|
Db7
|
CMA7
|
Musicians use tritone substitutions to vary the feel of repeated chord progressions and to facilitate stepwise motion. Re-harmonizing is one of the more interesting advanced topics taught here at berkleemusic and is covered in Getting Inside Harmony 2, which is authored by esteemed Berklee Professor and Assistant Film Scoring Chair Michael Rendish.
Interested students should either complete Getting Inside Harmony 1 or have equivalent experience.
- Listen to a Tritone Example MP3
- Explore Berkleemusic’s online Music Theory courses and certificate programs
Berkleemusic’s online winter term begins January 11, 2010.
Find out more at berkleemusic.com or contact a Student Advisor:
1-866-BERKLEE (USA) | +1 617 747 2146 (Intl) | advisors@berkleemusic.com




Hi everyone! I’m Julia Polanco, Student Advisor at 


Hello everyone! I’m Leigh McLaren, Student Advisor at
My name is Michael and I am an advisor here at
Hey, it’s Amy Heidemann! Like my fellow advisor Liam 