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the note B is on the bottom and Bb is at the top... B to Bb... what is the name of this interval and what's the explanation? My guess would be diminished prime, but i'm not sure such an interval even exists...

2007-09-18 02:31:06 · 7 answers · asked by ncingular809 1 in Entertainment & Music Music Classical

it can't be a major seventh interval... then it would have to be B to A#

2007-09-18 02:44:24 · update #1

just to clarify i actually meant B is at the bottom and going up an octave to the next B and then lowering it is where the second tone is... so i guess, instead of being a diminished prime it's a diminished octave?

2007-09-18 02:49:38 · update #2

7 answers

You have answered your own question -- diminished octave is correct.

Definition of diminished interval is:
one half step smaller than perfect or minor.

2007-09-18 03:17:50 · answer #1 · answered by glinzek 6 · 6 0

Your own answer is correct: B up to Bb is a diminished octave.

While both a diminished octave and a major 7th are ways of realizing a distance of 11 half steps, it is NOT the same as B up to A#. Ask any professional string player -- they would play those two intervals differently.

2007-09-19 09:06:07 · answer #2 · answered by Edik 5 · 1 0

Enharmonically the same, but not theoretically, and for many musicians not even practically. B-A# is a major 7th, a very likely interval in the context of the key of B major/minor. B-Bb is a diminished octave, hard to imagine in B major but perfectly likely in the key (quite remote from B major!) of G major/minor. They only sound the same on certain instruments (piano, organ in equal temperament); many other instruments with control of intonation (and of course singers) would handle these intervals differently. A# has a gravitational pull upwards to B, Bb has a pull downwards to A. Context is all. The theory is complicated but clear, the two intervals have different 'meanings', contexts and (often but not always), sounds. These differences are reflected meaningfully in the notation.

2007-09-18 11:20:32 · answer #3 · answered by Yogini 6 · 1 0

Sounds like a B Major seventh cord!

2007-09-18 09:36:17 · answer #4 · answered by Anonymous · 1 2

I believe it is a major seventh (11 half steps from B to B flat).

A sharp and B flat are the same.

2007-09-18 10:25:58 · answer #5 · answered by Malcolm D 7 · 2 2

It is a major 7th, B flat and A sharp are enharmonicly the same note.

2007-09-18 10:44:10 · answer #6 · answered by swigaro 4 · 1 3

It depends on the context. What key are we in?

2007-09-20 10:23:05 · answer #7 · answered by tuttifruiti 4 · 0 1

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