 The Clarinet BBoard
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Author: Irwin
Date: 2001-03-26 11:42
Has anyone used this device invented by Abe Glaper? If so, what do you think about it?
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Author: Anji
Date: 2001-03-26 13:42
I have, and I really like the sound of the Bb.
I think it may introduce some other problems in the throat tones, but it really helps open up the higher registers. I find the second break easier to play with the vent.
You should have it professionally fitted, the taper of the vent may not exactly match the existing hole.
anji
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Author: Irwin
Date: 2001-03-26 13:53
What are the other problems you feel it may cause?
I'm thinking of it only because my R13 sounds stuffy playing Bflat at the break, while a Leblanc Concerto I recently tried played that note very nicely.
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Author: Don Berger
Date: 2001-03-26 14:14
Ave Galper"s US Patent # is 5,241,890 and the references cited therein may be of interest to you. They are viewable at the Delphion patent site [IBM] and the USPTO site, and copyable. I'll be glad to help further. Interesting!! Don
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Author: Gordon (NZ)
Date: 2001-03-27 12:10
Irwin have you tried using a thick (brass instrument water key) cork shaped _/ for a pad, and then bend the key to retain same or greater venting. This greatly reduces turbulence around the tone hole and makes Bb much clearer on most clarinets. (The bending is easy and will do no harm unless the instrument is a Besson or Regent or Buisson, which all used crap metal.). Some makers are using shaped pads like this.
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Author: Brenda Siewert
Date: 2001-03-27 13:08
The Concerto played the Bb perfectly because the upper level Leblanc instruments are typically clearer on that note. My Opus plays the most perfectly clear Bb I've ever heard. So does the Leblanc LL I recently purchased. My Buffet R-13 Prestige had the same problem as your R-13 and I had it repadded with a special pad and still had the problem. I eventually sold it.
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Author: Don Berger
Date: 2001-03-27 21:47
In trying to study our pinch Bb problem by way of Mazzeo, Stubbins and McIntyre "improvements" beyond the 4 major makers, I have had the same experience as above that the top-of-line LeBlancs and some Selmers produce a good Bb by the tube design which protrudes into the bore only about 1/4-1/3 of the diameter and [to provide tube length] has a "boss" outside. I have never read any discussion of this feature but maybe some of us ""experts"" [ha ha] may wish to kick this around!!! Don
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Author: Robert Small
Date: 2001-03-28 04:57
The pinch Bb on my LL produces a pretty clear tone but not as clear as the A key plus the second side key. I can make the pinch Bb match the throat A but I have to lean into it a little more. It's the same story with my Selmer low C bass.
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Author: Anji
Date: 2001-03-28 12:23
The Galper vent does exactly what Gordon describes, it lifts the port some distance from the center of the bore, but maintains the same internal volume (or nearly so).
I found that it introduced some warble in the first A above the staff, but I'm really just a beginning player. It took me about two weeks to sort it out... clearance of the register key is important, and needs to be pretty high. I really like the resulting tone.
I also used a thicker cork pad on the key, which really helped.
Have you tried just using the RH trill key for the long Bb notes, instead?
This is an expensive gizmo, that works but may not be entirely necessary.
Also, Abe is more than willing to chat this up with any potential buyer and he does use it on his own horn.
anji
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