basic interval question

Discussion in 'Trumpet Discussion' started by Kang-Ling, May 8, 2012.

  1. Kang-Ling

    Kang-Ling Mezzo Piano User

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    I just made, for fun, a kind of cornetto-replica, with bamboo etc.
    ..just a tube, with no fingerholes yet...

    but what a surprise !!: the first harmonic note I get is a ninth (a little flat), not an octave, as I expected....

    I only can suspect on the more ore less cilindrical/conical tubing ....¿?¿??¿?
     
  2. trumpetsplus

    trumpetsplus Fortissimo User

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    Welcome to the world of bell tapers!

    The Australian didgeridoo is the same - tends to play a 10th rather than an octave, whereas an Alphorn will blow in tune (depending on how well it is made).
     
  3. rowuk

    rowuk Moderator Staff Member

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    A clarinet will play a twelfth (depending on how well it is made) ;-) !
     
  4. Kang-Ling

    Kang-Ling Mezzo Piano User

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    ...a very intriguing/funny affair ....!!!¡¡¡

    I supose, the most influent part is the mouthpiece, and "what comes next".....(lead-pipe,etc)

    ..are there any books about the subject ¿?¿?¿? (´would like to learn about this "misterios" things)


    Markus Breuss

    Markus Breuss
     
    Last edited: May 11, 2012
  5. trumpetsplus

    trumpetsplus Fortissimo User

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    Does that mean a clarinet is superior to a didjeridoo?
     
  6. Kang-Ling

    Kang-Ling Mezzo Piano User

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    ha ha ha ha ha ha ha ha ha ......
     
  7. rowuk

    rowuk Moderator Staff Member

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    Only if you still can walk and talk after 2 fifths...........



    My real Cornetto is pitched in G, but the lowest resonant tone is an A with all holes closed, the octave with all holes closed is a Bb............ It is still better than a clarinet!
     
  8. Kang-Ling

    Kang-Ling Mezzo Piano User

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    after all this nice posts, I think I ´ll create one of the world greatest cornettos ......

    mil gracias

    Markus

    (strange is: all holes closed -> the interval is a minor 9th., but if you are fingering a D , you can get a perfect octave with the same digitation)

    all strange for me !!! some books around to learn ¿?¿?
     
  9. Kang-Ling

    Kang-Ling Mezzo Piano User

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    sorry, I started this thread with a real fault, my error :
    of course, the cornetto does not overblow an octave , but an minor nienth !!! (b9)

    I allmost got it:

    the low A is a little to low, but the Bb is o.k.

    now comes the more experimental part:
    drilling the fingerholes
    (copying the distances from my Monk Resin cornetto will not help very much, the later is curved, my experimental one is straight, made of a bomboo-like tube I found in the country, and it´s shorter - for getting a A= 440hz)

    anyway: working with the hands is big fun ...

    saludos
     
    Last edited: May 16, 2012

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