Re: Descending aug and dim intervals

On 14 Apr., 00:53, "David Webber" <d...@[EMAIL PROTECTED]
>
wrote:

> Thus this "rich"structure of intervals allows arbitrary accidentals .

>No surprises there then. People have been doing it for a long time. Did
>you want to forbid them?


No, I meant only that this structure must have designations for
mentioned intervals.

>In this case: how can one
> mean the interval between Gb and A# or the interval between F# and
> Ab ?

>The former interval is 2th and includes 4 semitones
>A doubly augmented 2nd.
Then it is clearly.

> and latter interval is 3th and includes 2 semitones.
>A diminished 3rd.
It is easier to understand. I had to foresee that.

Nevertheless i have doubts concerning addition of intervals. I repeat
your examples,
> maj7+dim7=min13
> maj7+aug6=aug12

 Gives "maj+dim" always "min" and "maj+aug"-"aug"? Where can one the
rules find?
And if add three intervals? Isn't better add semitones from the first.

Best Regards

Yuri Vilenkin