Klarinet Archive - Posting 000199.txt from 1998/08

From: "F. Sheim" <fsheim@-----.com>
Subj: RE: [kl] Clarinet dislikes hot summer?
Date: Wed, 5 Aug 1998 21:35:40 -0400

If the rings are to do their job, I believe that they must fit snugly and
not need glue to hold their position. They are there to prevent the socket
from expanding and cracking.

Fred (fsheim@-----.com)

At 12:34 PM 8/6/98 +1200, you wrote:
>Thanks for the meteorological tips! Is it true that in high humidity
>there isn't as much oxygen in the air we breathe? Is that why it's hard
>to do anything other than rest in the shade and drink cold beer?
>
>Last summer in Christchurch was unusually hot and dry, during which my
>1950 Selmer BT suffered - all the metal rings (including the big one on
>the bell) became loose and needed to be glued back in position. Mostly,
>I left my more expensive instruments unplayed in their cases and they
>survived unscathed. I guess that in the sort of weather we had for so
>long, the metal expanded and the wood shrunk.
>
>Cheers,
>Graeme Cox
>Christchurch City Council PO Box 237 Christchurch, New Zealand
>+64 3 3711531 Fax 64 3 3711989, 163 Tuam St, Christchurch
>mobile 025 2291765
>Graeme.Cox@-----.nz
>
>
>> -----Original Message-----
>> From: Arnold Teres [SMTP:johnathant@-----.com]
>> Sent: Thursday, August 06, 1998 11:00 AM
>> To: klarinet@-----.org
>> Subject: [kl] Clarinet dislikes hot summer?
>>
>> My Selmer CenterTone also "dislikes" hot and humid environments. I too
>> find
>> the far altisimo nearly impossible on such days but the same reed
>> indoors in
>> air conditioning does well. Of course, the entire insturment is
>> indoors and
>> I don't mean that the reed is at fault - just that the same setup
>> seems to
>> respond to humidity. A quick glance at a periodic table shows that one
>> mole
>> of air has a mass of about 28.6g while one mole of water has a mass of
>> about
>> 18g. This calculation is based on air being 21 % diatomic oxygen and
>> 78%
>> diatomic nitrogen - the rest is carbon dioxide and other gases - not
>> enough
>> to make a big difference. This means that the more humid air becomes
>> the
>> "lighter" (read less dense) air becomes. I don't know if 90% humidity
>> on a
>> hot day "lightens" air enough to matter to a clarinet. Does anyone
>> have some
>> information on the effects of air density on clarinets?
>>
>>
>>
>>
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