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 New Tosca correction mechanism
Author: John Peacock 
Date:   2020-10-04 01:29
Attachment:  ghiro_tosca.jpg (231k)

I was just watching the recent "live" concert by the BBC Scottish Symphony Orchestra. The Principal clarinet, Yann Ghiro is playing a Tosca, but with a more complicated low-F vent system. Either Buffet has changed their design or, like me, Ghiro didn't think much of the existing system and had a custom solution installed:

https://www.youtube.com/watch?v=FMqT05q5Be0

[it's a great performance of Mendelssohn 5, by the way]

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 Re: New Tosca correction mechanism
Author: jdbassplayer 
Date:   2020-10-04 03:02

The “stock” option is a low F vent, but Buffet offers an additional low E vent as an option. This is likely what this is.

-Jdbassplayer

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 Re: New Tosca correction mechanism
Author: Paul Aviles 
Date:   2020-10-04 04:34

So is it the same pinky key that triggers both low F vent and low E vent?







.................Paul Aviles



Post Edited (2020-10-04 04:34)

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 Re: New Tosca correction mechanism
Author: jdbassplayer 
Date:   2020-10-04 04:51

Yes I believe so, it’s designed with 2 vents that automatically open and close with the F and E keys when you press the 1 key. This of course means you have to play low E with both pinkies.

-Jdbassplayer

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 Re: New Tosca correction mechanism
Author: Chris P 
Date:   2020-10-04 06:24

It's an adaptation of the low E/F correction mechanism as seen on Oehler systems (the low F correction vent closes when E is played and the bell vent remains open for both notes).

https://i.ebayimg.com/images/g/E7MAAOSw1tVeX-pb/s-l1600.jpg
https://i.ebayimg.com/images/g/NqsAAOSw~O1eX-bS/s-l1600.jpg

Yamaha also have a similar system on their CSGIII which is operated by the right thumb (as on Oehlers) but all the keywork is on the lower joint instead of the bell vent.

https://www.ozwinds.com.au/images/YCL-CSGIII.e.jpg
https://mthumbs.static-thomann.de/thumb/padthumb600x360/pics/bdb/235441/14771411_800.jpg

I'm sure there are others that have a fully automatic low E/F correction mechanism that's controlled by the speaker key so it only functions in the lower register, just as the low F correction key is on several makes (Selmer, Buffet and Backun).

Former oboe finisher
Howarth of London
1998 - 2010

The opinions I express are my own.

Post Edited (2020-10-04 06:37)

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 Re: New Tosca correction mechanism
Author: John Peacock 
Date:   2020-10-05 01:09


jdbassplayer wrote:

> Buffet offers an additional low E vent as an option

There's no hint of this that I can find in the buffet web site. Is there some reference you can point to for more detail? Thanks.

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 Re: New Tosca correction mechanism
Author: jdbassplayer 
Date:   2020-10-05 01:22

Buffet’s own website no longer mentions it after the redesign, but some of their distributors mention it still.

< http://clarinet.dk/content/show_cla_detail.php?id=69&cont=eu&lang=en&instr=cla&type=6&brand=Buffet%20Crampon&instrtype=>

< https://www.lecoindesbois.com/en/clarinet-for-sale/buffet-crampon-tosca-bb-clarinet/>

Although I assume actually ordering it from Buffet would be a nightmare without connections.

-Jdbassplayer

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 Re: New Tosca correction mechanism
Author: Paul Aviles 
Date:   2020-10-05 07:34

"Ordering" ANYTHING from Buffet is a nightmare. I'd just say forget you ever saw this mechanism.





..............Paul Aviles



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 Re: New Tosca correction mechanism
Author: Hurstfarm 
Date:   2020-10-05 11:44

It’s one of a number of customisations offered here if you feel the basic Tosca isn’t expensive enough...

http://clarinet.dk/content/show_cla_detail.php?id=69&cont=eu&lang=en&instr=cla&type=6&brand=Buffet%20Crampon&instrtype=

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 Re: New Tosca correction mechanism
Author: John Peacock 
Date:   2020-10-05 15:51

Hurstfarm: thanks. The L+P mechanism is different to the one Ghiro is playing.

I don't actually want to order one (not least, I don't have a Tosca), but just curious about who created the mechanism, and how it works.

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 Re: New Tosca correction mechanism
Author: Hurstfarm 
Date:   2020-10-05 18:08

Sorry John - I didn’t mean to suggest that you had money to burn, I was talking generically about the temptations to spend even more money on customising an already expensive instrument! L&P offer a few, including the modified correction mechanism.

You’re right the mechanism isn’t the same as the 2 options illustrated on the L&P website, so doesn’t answer the original question - although there’s a third, fully automatic, solution where there’s no picture, so not clear what that looks like.

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 Re: New Tosca correction mechanism
Author: Philip Caron 
Date:   2020-10-05 20:16

I wonder if ergonomically situated buttons could electronically open & close holes on the instrument, without mechanical connections.

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 Re: New Tosca correction mechanism
Author: jdbassplayer 
Date:   2020-10-05 20:23

Philip Caron wrote:

> I wonder if ergonomically situated buttons could electronically
> open & close holes on the instrument, without mechanical
> connections.

Probably, but do you really want to have to worry about running out of battery halfway through a concert...

-Jdbassplayer

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 Re: New Tosca correction mechanism
Author: Peter B 
Date:   2020-10-05 22:11

It actually exists, sort of: https://youtu.be/YiZ3R6rxWqQ

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 Re: New Tosca correction mechanism
Author: Hurstfarm 
Date:   2020-10-05 22:39

Crumbs!

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 Re: New Tosca correction mechanism
Author: dorjepismo 2017
Date:   2020-10-05 23:14

J. Seggelke did a contrabass clarinet where everything is controlled electronically, so presumably it would work with things like the correction vents too, but a hybrid system might be a little difficult to get used to.

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 Re: New Tosca correction mechanism
Author: Paul Aviles 
Date:   2020-10-05 23:18

Well...........it doesn't have gold plated keys.






.............Paul Aviles



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 Re: New Tosca correction mechanism
Author: yannghiro 
Date:   2020-12-09 02:36

hi John.
the extra hole is for the bottom E correction. it s great to have a better bottom F but having both is better i think Buffet adds that mechanism on demand... it makes a big difference.

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 Re: New Tosca correction mechanism
Author: John Peacock 
Date:   2020-12-11 13:50

Dear Yann,

Thanks for coming into this discussion. I guess you didn't buy the instrument new, then, if you "think" than Buffet adds it on demand? Anyway, I'd be interested to know how you play it in practice - is it the same as the standard model, where you use an extra key with the RH little finger to actuate the vent? i.e. there's no thumb key or anything extra needed to make the low-E mechanism work?

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 Re: New Tosca correction mechanism
Author: yannghiro 
Date:   2023-11-20 01:53

hi John,
sorry for very late reply!!!
I bought the clarinet new from the factory a long time ago, literally as soon as they made the green line Tosca!
and years later, they (Buffet) came up with that extra vent for the bottom E which was a good idea to go with the better F...
The system is extremely simple, one just needs to press the "new" F key and then press the E as normal and voilà! no thumb key...
Years ago, through my teacher in Paris conservatoire Michel Arrignon, I had a Elite prototype Bb which had a longer bottom joint and a resonance hole which naturally made E and F very much more in tune. I loved that system and wish that I never parted with it....
I believe they used that system with the new XXIII, some 25 years later...

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