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Klarinet Archive - Posting 000332.txt from 2001/02

From: Gary Truesdail <gir@-----.net>
Subj: Re: [kl] Re: difference tones
Date: Sat, 10 Feb 2001 03:04:48 -0500

Jerome Rosen wrote a quartet where all 4 players had to do some of this
multitone business. Lacy, If you can get a C-Ab you could have performed in
that quartet. Doing this kind of tone production is throat and fingering
dependent, but also, reed-mtpc setup dependent. Guys with the softer reeds could
more readily do the multi-tones. Any comment?
GaryT

Lacy Schroeder wrote:

> Another way to get your clarinet to play two tones is:
>
> Finger a 3rd space C and open the throat A key at the same time
>
> VOILA!! You get a C-Ab! It is tricky, however, to get the correct breath to
> do this. It needs to be very soft and yet focused.
>
> Have fun :)
>
> Lacy
>
> -----Original Message-----
> From: Gary Truesdail [mailto:gir@-----.net]
> Sent: Wednesday, February 07, 2001 2:46 AM
> To: klarinet@-----.org
> Subject: Re: [kl] Re: difference tones
>
> Now give them the next lesson in this sequence. Walter may be the only
> other
> person besides you and myself to know how the difference tone keeps you from
> humming the same pitch that you are playing on your instrument. (This is
> important to know if your music requires you to growl, or as I have seen is
> some music, play one note, hum a required pitch which will in turn produce a
> difference tone - Voila - you are playing a trio with yourself, and if you
> know the weird fingerings, you can get the clarinet to produce 2 - yes I
> said
> two - different tones at the same time, then you have a quartet with
> yourself.) Unfortunately it cannot produce the expected harmonic
> progressions
> or voicings we all have grown to know and love.
>
> GaryT
>
> Grant Green wrote:
>
> > >Labadorf@-----.com wrote:
> > >
> > >What is the difference tone when two persons are playing an octave?
> > >
> > >David
> >
> > You can calculate the difference tone by subtracting the frequency of
> > the lower pitch from that of the upper pitch. The effect is not very
> > noticeable when you play in octaves, because the upper pitch is
> > exactly twice the lower pitch, which makes the difference tone a
> > unison with the lower pitch.
> >
> > The difference tone if the pitches played are a fifth apart is an
> > octave lower than the lower pitch (for example, if you play A4 and
> > E4, the difference tone would be A3). If the pitches are a fourth
> > apart, the difference tone is two octaves below the upper pitch
> > (e.g., if you play A4 and D4, the difference is D2). You can tune
> > the difference tone by adjusting the pitches you play - increasing
> > the spread of the interval (raising the upper pitch or lowering the
> > lower pitch) raises the difference tone pitch, and vice versa.
> > Difference tones are sometimes used in pipe organs for the lower
> > pedal notes: e.g., instead of having a rank of 64' (or 32') pipes,
> > you may find a "resultant" voice that actually consists of shorter
> > pipes played at a fixed interval to produce the desired difference
> > tone.
> >
> > Grant
> >
> > ++++++++++++++++++++++++++++++++++++++++++++++++
> > Grant Green gdgreen@-----.com
> > ecode:contrabass http://www.contrabass.com
> > Professional Fool -> http://www.mp3.com/ProFools
> > ++++++++++++++++++++++++++++++++++++++++++++++++
> >
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