Re: [LAU] New Bach from Aeolus and me

M Watts wrote:
> On 06/17/2010 07:44 PM, david wrote:
>
>> Organ registrations are a mystery to me, too. How can I learn about them?
>>
>
> Try this book:
>
> Organ-Stops and Their Artistic Registration by George Ashdown Audsley
> (ISBN: 9780486424231)
>
> This link has some info on how the various foot lengths relate to the
> harmonic series etc.:
>
> http://www.lawrencephelps.com/Documents/Articles/Beginner/pipeorgans101.html
>
>
> There's a stop dictionary at http://www.organstops.org/
>
> Basic crash course:--
>
> The main manual stops are at 8' pitch; it takes an open pipe of 8'
> sounding length to produce the C under the bass staff. The main pedal
> stops are 16', an octave lower. The pedals are usually, but not always,
> coupled to whatever manual is currently in use.
>
> Flue stops:
> The main 'organ' sound is the Diapason or Principal; these are either
> open pipes (Principal, Octave, Fifteenth) or stopped, with a plug in the
> end, sounding softer (Dulciana, Salicional). A stopped pipe sounds an
> octave lower than its length would indicate.
>
> Mutation stops and mixtures are also diapason-type, not used by
> themselves; mutations are single ranks, sounding one of the harmonic
> series other than the octave (Twelfth, Quint, Septime, None, Tierce,
> Larigot); mixtures are multi-rank, for adding brightness (Cymbel,
> Furniture, Cornet, Sesquialtera).
>
> There are flutey-sounding flue stops (Claribel, Hohlflute, Gedact,
> Gemshorn, Suabe), and stringy-sounding flues (Geigen, Gamba, Violone).
>
> Reed stops:
> These use reed, usually of brass, to produce the sound; they range from
> smooth and quiet (Cornopean, Oboe, Vox Humana) or loud & agressive
> (Ophecleide, Posaun, Bombarde, Trumpet).
>
> Couplers etc:
> These couple various manuals together, allowing stops from one manual to
> be played on another. Sometimes there are octave- and suboctave-couplers.
>
> E.g. in Aeolus, the Great to Pedal coupler is labelled P+1, meaning the
> pedals will play the stops drawn on Manual I, as well as its own.
>
> So in Aeolus, a basic organ sound is:
>
> Manual I: Principal 8, Principal 4, Octave 2
> Pedal: Subbass 16, P+I
>
> From here, add any or all of Octave 1, Quint 2 2/3, Mixtur; Add or swap
> Principal 16 for Subbass on the pedal.
>
> (Sorry for thread hijack :))

Thanks for the info - that's a lot!

No worry about thread hijack, since I did it before you got involved! ;-)

-- 
David
gnome@email-addr-hidden
authenticity, honesty, community
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