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In Part 4 we talk about :
- descending minor 2nd (same sound as augmented unison)
- descending major 2nd
- descending minor 3rd (same sound as augmented second)
If you have troubles understanding interval names, you can check this post.
Descending minor 2nd
A descending minor 2nd is made of 1 semi-tone1
Every descending minor 2nd share a common sound.
It can be C-B or A-G♯ or B♭-A ...
Note that B-B♭ is made of a 1 semi-tones too. But the name of this interval is augmented unison. Since minor 2nd and augmented unison have the same width (1 semi-tone), they share the same characteristic sound. So what applies to one also applies to the other.
Here are some examples :
You'll easily recognise this sound.
Listen to the first two notes of the Jurassic Park Theme (at 0:02) :
You can use this fantastic John Williams composition to remember the sound of a descending minor 2nd. (or descending augmented unisson)
Descending major 2nd
A major 2nd is made of 2 semi-tones. (ie : a whole-tone)
Every descending major 2nd share a common sound.
It can be C-B♭ or D♯-C♯ or A♭-G♭...
Here are some examples of descending major 2nds :
Listen carefully to the first two notes of Howard Shore's Lord of the Ring (King of the Golden Hall) :
This is the sound of a descending major 2nd.
Descending minor 3rd
A minor 3rd has a width of 3 semi-tones.
Every descending minor 3rd share a common sound.
It can be C-A or D-B or A-F♯ or E♭-C among others...
Here are some examples of minor 3rds :
Listen carefully to the first two notes of the song "The girl from Ipanema" (The personel are Stan Getz - tenor saxophone, João Gilberto - guitar, vocals, Astrud Gilberto -- vocals, Antonio Carlos Jobim - piano, Sebastião Neto -- bass, and Milton Banana - drums.). The humming begins by Eb-C which is a descending minor third. Note that when the singer sings the first lyrics at 0:07, the first two note are Eb-C too :
That's it for today ! See you in Part 5 where we continue descending intervals, with a whole new set of songs/compositions !
See you soon,