hi guys,
i found this article 'all about chords pt1' on the site today - very good, looking forward to reading all of them.
anyways, it takes a look at the V7-I progression in C and why it sounds so good.
3 reasons are give:
'sweet note' or 3rd
tritones
assending perfect 4th
the first and third and understand, but i dont get the part on tritone intervals ?
can anyone make this whole section alittle more clear for me please ?
thanks
mord
This is my signature. Fear it.
If you play a dom7th chord like a G7, you'll notice that it sounds rather harsh and dissonant. Tense. This tension is mostly due to the tritone interval in it.
The V7 chord has the notes 5-7-9-11, or, in the key of C, G-B-D-F. The tritone (3 whole steps) occurs between the B and F, the 7th and the 11th. Play this interval for yourself and listen to how harsh it sounds. It was known as diabolus in musica or the devil's interval in the Middle Ages.
Now, this interval resolves into the more pleasant major 3rd as the B moves to C and the F moves to E to form the C major chord (1-3-5 or C-E-G). This resolution is the most important tool in music.
I hope this helps.
--
Helgi Briem
hbriem AT gmail DOT com
