Identifying the interval from A♭ to D♯












2















This is a very theoretical question but it's confusing me a little.



So intervals overlap - That's why I can call a major 3rd a diminished 4th, and such.



However, from what I understand, a perfect 5th only overlaps with a diminished 6th. You cannot refer to a 7 semitone interval using a 4th because the "biggest" fourth, augmented fourth, is a diminished 5th.



So consider this (treble clef):



enter image description here



What would you call the interval here? From what I understand it should be called a 4th because of the distance between the notes. But that's impossible.






theory intervals







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    2















    This is a very theoretical question but it's confusing me a little.



    So intervals overlap - That's why I can call a major 3rd a diminished 4th, and such.



    However, from what I understand, a perfect 5th only overlaps with a diminished 6th. You cannot refer to a 7 semitone interval using a 4th because the "biggest" fourth, augmented fourth, is a diminished 5th.



    So consider this (treble clef):



    enter image description here



    What would you call the interval here? From what I understand it should be called a 4th because of the distance between the notes. But that's impossible.






    theory intervals







    share|improve this question









    New contributor




    fishamit is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























      2












      2








      2








      This is a very theoretical question but it's confusing me a little.



      So intervals overlap - That's why I can call a major 3rd a diminished 4th, and such.



      However, from what I understand, a perfect 5th only overlaps with a diminished 6th. You cannot refer to a 7 semitone interval using a 4th because the "biggest" fourth, augmented fourth, is a diminished 5th.



      So consider this (treble clef):



      enter image description here



      What would you call the interval here? From what I understand it should be called a 4th because of the distance between the notes. But that's impossible.






      theory intervals







      share|improve this question









      New contributor




      fishamit is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      This is a very theoretical question but it's confusing me a little.



      So intervals overlap - That's why I can call a major 3rd a diminished 4th, and such.



      However, from what I understand, a perfect 5th only overlaps with a diminished 6th. You cannot refer to a 7 semitone interval using a 4th because the "biggest" fourth, augmented fourth, is a diminished 5th.



      So consider this (treble clef):



      enter image description here



      What would you call the interval here? From what I understand it should be called a 4th because of the distance between the notes. But that's impossible.






      theory intervals




      theory intervals






      share|improve this question









      New contributor




      fishamit is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question









      New contributor




      fishamit is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question








      edited 10 mins ago









      Richard

      43k697185




      43k697185






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      asked 1 hour ago









      fishamitfishamit

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          You're correct; it should be called a fourth!



          But since "augmented fourth" won't be big enough for this, we kind of had to make up a term, and the world of music theory collectively decided upon calling this interval a doubly augmented fourth. This just means that it's one half step larger than an augmented fourth. (As such, the augmented fourth is not really the "biggest" fourth possible.)



          The same is true for diminished intervals; a half step smaller than a diminished sixth will be a doubly diminished sixth.



          Any interval can overlap with (or, in more theoretical terms, "be enharmonic to") another interval. A perfect fifth could, in theory, be enharmonic to a triply augmented third—not that you'll encounter those very often!






          share|improve this answer


























          • This is the best way to explain doubly-augmented intervals I've heard. +1!

            – user45266
            12 mins ago











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          1 Answer
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          active

          oldest

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          1 Answer
          1






          active

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          active

          oldest

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          active

          oldest

          votes









          4














          You're correct; it should be called a fourth!



          But since "augmented fourth" won't be big enough for this, we kind of had to make up a term, and the world of music theory collectively decided upon calling this interval a doubly augmented fourth. This just means that it's one half step larger than an augmented fourth. (As such, the augmented fourth is not really the "biggest" fourth possible.)



          The same is true for diminished intervals; a half step smaller than a diminished sixth will be a doubly diminished sixth.



          Any interval can overlap with (or, in more theoretical terms, "be enharmonic to") another interval. A perfect fifth could, in theory, be enharmonic to a triply augmented third—not that you'll encounter those very often!






          share|improve this answer


























          • This is the best way to explain doubly-augmented intervals I've heard. +1!

            – user45266
            12 mins ago
















          4














          You're correct; it should be called a fourth!



          But since "augmented fourth" won't be big enough for this, we kind of had to make up a term, and the world of music theory collectively decided upon calling this interval a doubly augmented fourth. This just means that it's one half step larger than an augmented fourth. (As such, the augmented fourth is not really the "biggest" fourth possible.)



          The same is true for diminished intervals; a half step smaller than a diminished sixth will be a doubly diminished sixth.



          Any interval can overlap with (or, in more theoretical terms, "be enharmonic to") another interval. A perfect fifth could, in theory, be enharmonic to a triply augmented third—not that you'll encounter those very often!






          share|improve this answer


























          • This is the best way to explain doubly-augmented intervals I've heard. +1!

            – user45266
            12 mins ago














          4












          4








          4







          You're correct; it should be called a fourth!



          But since "augmented fourth" won't be big enough for this, we kind of had to make up a term, and the world of music theory collectively decided upon calling this interval a doubly augmented fourth. This just means that it's one half step larger than an augmented fourth. (As such, the augmented fourth is not really the "biggest" fourth possible.)



          The same is true for diminished intervals; a half step smaller than a diminished sixth will be a doubly diminished sixth.



          Any interval can overlap with (or, in more theoretical terms, "be enharmonic to") another interval. A perfect fifth could, in theory, be enharmonic to a triply augmented third—not that you'll encounter those very often!






          share|improve this answer















          You're correct; it should be called a fourth!



          But since "augmented fourth" won't be big enough for this, we kind of had to make up a term, and the world of music theory collectively decided upon calling this interval a doubly augmented fourth. This just means that it's one half step larger than an augmented fourth. (As such, the augmented fourth is not really the "biggest" fourth possible.)



          The same is true for diminished intervals; a half step smaller than a diminished sixth will be a doubly diminished sixth.



          Any interval can overlap with (or, in more theoretical terms, "be enharmonic to") another interval. A perfect fifth could, in theory, be enharmonic to a triply augmented third—not that you'll encounter those very often!







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited 6 mins ago

























          answered 1 hour ago









          RichardRichard

          43k697185




          43k697185













          • This is the best way to explain doubly-augmented intervals I've heard. +1!

            – user45266
            12 mins ago



















          • This is the best way to explain doubly-augmented intervals I've heard. +1!

            – user45266
            12 mins ago

















          This is the best way to explain doubly-augmented intervals I've heard. +1!

          – user45266
          12 mins ago





          This is the best way to explain doubly-augmented intervals I've heard. +1!

          – user45266
          12 mins ago










          fishamit is a new contributor. Be nice, and check out our Code of Conduct.










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