 The Clarinet BBoard
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Author: Mark Charette
Date: 2020-12-04 21:00
Attachment: PIC1.jpeg (87k)
What exactly is this system? I don't remember what has a half-hole plate. It's a D.-B. clarinet (Paris). Not familiar with that either. I have more pics if necessary.
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Author: David Spiegelthal ★2017
Date: 2020-12-04 21:05
Mark: Not sure at all, but it reminds me of a Pepusch-system clarinet I saw many years ago. Sorry if that doesn't help.
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Author: jdbassplayer
Date: 2020-12-05 02:03
Yeah Double Boehm. The left hand fingering mirrors the right hand with this system.
So Eb/Bb wound be:
x xoo|ooo
E/B is:
x oxo|ooo
Edit: and the perforated plate is just there to help with the altissimo. Since the first finger tone hole is now located lower on this system it is needed to help the altissimo come out clearer.
And the rest is standard Boehm. Very unusual instrument, where did you get it?
-Jdbassplayer
Post Edited (2020-12-05 02:05)
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Author: Chris P
Date: 2020-12-05 02:45
It was a design so the fingerings in both LH and RH main actions were the same and there's no bridge key. Lifting each finger in turn gives (RH) G-A-Bb/D-E-F (LH) C-D-Eb/G-A-Bb. It has a side key for E/B natural (like the B/F# sliver key in the RH main action).
If you have Jack Brymer's book to hand, see page 57 as there's a publicity leaflet about it on that entire page and also a paragraph about it on page 58-59.
Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.
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Author: tyleman
Date: 2020-12-05 17:57
I own one. Here's a little snippet I found somewhere on the web: "In 1948 Charles Houvenaghel, an employee of Leblanc, patented his 'double-Boehm' clarinet, which simplified fingering for the left hand, and made Eb1/Bb2 part of the normal scale. The rest of his clarinet resembles a normal Boehm-system instrument."
And this from "The Modern Clarinetist": "A fingering system patented in 1948 by Charles Houvenaghel (1878-1966), of Leblanc. In this system the lower joint is that of a normal Boehm system clarinet. On the upper join there is a plateay key for L1 which, when depressed along with L0, produces Eb4 (rather than E4, as on the normal Boehm system.) This means that the pattern of intervals produced by each hand is the same: a whole step followed by a half step. On the double-Boehm, E4 is produced by L0 and L2. The plateau key is also pierced with a small hole, to facilitate the pitches of the altissimo register. The instrument had refinements of tone hole size and shape and omitted the bridge key between the upper and lower joints."
Mine came with a DB mouthpiece which unfortunately had split and been glued.
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Author: Chris P
Date: 2020-12-06 19:55
You'd have thought if they were duplicating the fingerings in both RH and LH main actions, they'd have included a LH3 sliver key for E/B to duplicate the RH3 B/F# sliver key - only there's hardly any room for it between the LH2 and 3 rings.
Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.
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