Berklee typo?

Anyone else find something wrong with that?

phobik2000 wrote:
Anyone else find something wrong with that?

For the first glance that is a typo or we can call it as perfect fifth ... but actually it isnt

B to E is a perfect fourth (four notes on a major scale, B 1st, E 4th)
In case of a tritone we either see an augmented fourth or a diminshed fifth. Both three tones away.

The augmented fourth (adding a half tone to a perfect fourth) is E# because E is the perfect fourth
The diminished fifth (lowering a half tone from a perfect fifth) is F because F# is the perfect fifth!!!!

Here is list you can count on by half tones:

C (B#), C# (Db), D, D# (Eb), E (Fb), F (E#), F# (Gb), G, G# (Ab), A, A# (Bb), B (Cb)

Hope that helps... these things sound like a mathematical mystery sometimes...

Actually from what i can see there's nothing wrong here, they're pointing out the difference between a augmented 4th and a diminished 5th if you take a look at the keyboard on a piano and count 3 whole tones up from b you'll see you land on F, and if you count 3 whole tones up from F you'll land on B, the difference in what you call them is set by the distance they appear to be on the actual staff paper

I know it can be a little confusing but if you take a look at the sheet music, it's called a diminished 4th because on staff paper it's written as a 4th apart.

But 3 whole tones = #4 = forth, and in Fmaj scale a perfect forth would be A#? So B would be an augmented forth??

F major

C (B#), C# (Db), D, D# (Eb), E (Fb), F (E#), F# (Gb), G, G# (Ab), A, A# (Bb), B (Cb)

A perfect fourth is 5 half-steps after a certain sound. A perfect fifth is 7 half-steps after a certain sound.

The augmented fourth (adding a half tone to a perfect fourth) from F is B because A# is the perfect fourth.

So in my understanding you are right.