And it was talking about Perfect fourth double stops.
Now i know for powerchords it is the root note and its perfect fifth.
So if the root note is a D, then you count on 5 full steps and you get an A, which is your perfect fifth.
But then when it comes to these perfect fourths, its saying that, if the root note is a C, then the perfect fourth is an F.
And that is four semi tones difference, which is i guess where they get the perfect fourth from.

But why does it differ from the perfect fifth when it comes to powerchords. Why is it (unless I am missing something) that in perfect fifths the difference is five full tones from the root, while in the perfect fourth it is 4 semi tones difference?
Umm, I think the perfect fifth is seven semitones from the root.

Edit:

So perfect fourth = 5 semitones
flattened/diminished fifth = 6 semitones
fifth = 7 semitones

2nd Edit: Im gonna run through this real quick:

Quote by johnos

Now i know for powerchords it is the root note and its perfect fifth.
Yes, that is correct.
So if the root note is a D, then you count on 5 full steps and you get an A, which is your perfect fifth.
A is seven HALF steps from D
But then when it comes to these perfect fourths, its saying that, if the root note is a C, then the perfect fourth is an F.
And that is four semi tones difference, which is i guess where they get the perfect fourth from.
yes...

But why does it differ from the perfect fifth when it comes to powerchords. Why is it (unless I am missing something) that in perfect fifths the difference is five full tones from the root, while in the perfect fourth it is 4 semi tones difference?
Yeah, a perfect fifth is seven half steps, perfect fourth is five.
Last edited by bassdrum at Jan 8, 2007,
Quote by johnos

And it was talking about Perfect fourth double stops.
Now i know for powerchords it is the root note and its perfect fifth.
So if the root note is a D, then you count on 5 full steps and you get an A, which is your perfect fifth.
But then when it comes to these perfect fourths, its saying that, if the root note is a C, then the perfect fourth is an F.
And that is four semi tones difference, which is i guess where they get the perfect fourth from.

But why does it differ from the perfect fifth when it comes to powerchords. Why is it (unless I am missing something) that in perfect fifths the difference is five full tones from the root, while in the perfect fourth it is 4 semi tones difference?
Try this Introduction to Intervals and when you feel you're on solid ground move on to Group 1 Intervals, which includes the Perfect Fourth.