Appropriate Historical Temperaments

Geoffrey Pollard gpollard@greenway.usyd.edu.au
Tue May 15 23:05 MDT 2001


>This week I have to prepare a harpsichord to accompany a Vivaldi 
>violin piece, and am wondering if anyone has suggestions for an 
>appropriate temperament.  And, generally, I'm interested in how 
>people who use HTs pick them. Thanks.
>

I have recently started using an 18 century French temperament, 
Tempérament Ordinaire for our three harpsichords and one fortepiano. 
This is one version from a family of temperaments used on organs. It 
comes from a great book - The Well Tempered Organ by  Charles A 
Padgham ( Oxford 1986).

I had been tuning a Vallotti/Young but was unhappy with some 
disagreements, particularly the E-G# third and A-E fifth and an 
overall awkwardness or abruptness in many of its modulations. I also 
tune outside work for a baroque ensemble and the Vallotti is the 
current favourite with most string and woodwind players.

However, I've been overwhelmed with positive comments about this 
tuning. I put this tempering into the studio piano of our baroque 
flute teacher. He stops me every other day and thanks me for it. The 
two modern flute teachers have heard it and want their pianos changed 
to it. The harpsichord tutor and his students commented straight away 
on the day I tuned the harpsichord - they love it. And, unbelievably, 
I have now had two piano staff asking to try it in their studio 
pianos.

This is a very finely 'crafted' tempering;  it's secret, I believe, 
is a close attention to internal agreements of beat speeds and not 
just purity of intervals. Many temperings achieve a purity of thirds 
or fifths in certain keys but in actual playing, this purity is 
masked by excessive beats in minor thirds and sixths especially. In 
this tempering in the central keys of 1 or 2 sharps and flats, for 
example, beats in thirds or fifths agree with beats in sixths which 
creates a wonderful clarity of texture to chords and harmonies. It is 
elegant and beautiful and smooth in its modulation, even through the 
more coloured, remote keys.

Historical appropriateness is of course, another issue. It would seem 
to be a natural choice for, say Couperin, but purists may object to 
its use for German or Italian music. But, until they start 
objecting.....I've got some very happy  musicians!

If you have some kind of ETD  here are the cent deviations from 
unstretched, equal temperament ie.100 cents/semitone:
A,  Bb, B, C ,C#, D, Eb, E ,  F,  F#, G,  G#, A
0, +7, -6,+9,-2,+3,+2, -3,+12,-4, +6,-1,    0

Geoffrey Pollard
Sydney Conservatorium of Music
Sydney, Australia







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