Waddles

I seriously don't understand the difference between a perfect eighth and an augmented seventh. Or a diminished eighth and a major seventh. Or a minor seventh or an augmented sixth. Or a...hopefully you get my point.

Is there a difference? Somebody, please. Help. I have asked Google every way I know how to explain intervals to me, and I can't find an answer that makes sense.

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“I doubt sometimes whether a quiet and unagitated life would have suited me - yet I sometimes long for it.” George Byron

GD

The difference is all about musical context and how they're "spelled" in the musical notation.
In terms of how they sound, is there a difference between, for instance, an augmented fourth and a diminished fifth? No. But both spellings of the same interval can be used in different contexts to make it as easily readable as possible.

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lasty|rate-y music-y

Waddles

Thank you! I appreciate it very much. I've been piecing together what I can about intervals, and this helps.

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“I doubt sometimes whether a quiet and unagitated life would have suited me - yet I sometimes long for it.” George Byron