mouthpiece - leadpipe - gap

Discussion in 'Trumpet Discussion' started by Kang-Ling, Aug 12, 2010.

  1. Kang-Ling

    Kang-Ling Mezzo Piano User

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    Oct 8, 2009
    Frigiliana
    how important is the (no-) gap between the end of the mouth-piece-shank and the beginning of the leadpipe ¿?¿?¿?

    the other day (with my simple measuring-"equipment") I had a look :

    for example: a Bach mouthpiece in a Stradivarius trumpet : there is practically cero gap between mouthpiece and leadpipe

    some other horns (because of the mouthpiece-receiver-design) have some huge gaps

    but - surprisingly - they don´t sound bad at all !!!....................................
     
  2. The Kraken

    The Kraken Piano User

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    Mar 28, 2007
    Gold Coast - 805
    Go to Bob Reeves website, he has some information on GAP!!
     
  3. lakerjazz

    lakerjazz Mezzo Piano User

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    Oct 10, 2006
    A Larger gap will make a horn more resistant with tighter slots, while a small gap will make it more free blowing (than it would be with a larger gap but not necessarily free blowing overall) with looser slots
     
  4. rowuk

    rowuk Moderator Staff Member

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    Germany
    Gap is NOT a must have, it is a nice to have. The differences are definitely not between good an great or good and bad. They are much more subtle.

    Bach mouthpieces with a Bach trumpet have gap all over the place. Schilke recommended no gap. Their shanks are also so thin/sharp at the end that one cannot speak of "gap". The same applies to many Monette mouthpieces. Dave Monette DOES take the distance between the mouthpiece and leadpipe seriously. I think that has more to do with the total length of the instrument than some gap with magical powers. I would not recommend adjusting the gap without getting the valves aligned. There is much more error in the bore there.
     
  5. crazyandy88

    crazyandy88 Pianissimo User

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    Nov 3, 2007
    Fayetteville, AR
    From what K. O. at Brass Spa told me, the gap changes the distance between notes just slightly. Like a slinky, smaller gap is like a compressed slinky that is very close together and a larger gap like an expanded slinky. Here's video from Stomvi USA Facebook page.
    Stomvi USA | Facebook
     

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