Sorry if I add nothing new, I did not find the time to read the whole
thread - but I would like to give my opinion on this subject, too. Also I
have to beg your pardon for my bad English.
My problem with modern harpsichord compositions (and clavichord compositons
as well) is, that the instrument is used there only as a special register
or sound effect of keyboard (piano) in quite a lot of pieces (in all pieces
I have seen up to now...).
The things which kept me busy over years, the techniques I had to learn,
develop and cultivate to make my instrument (the harpsichord since
childhood) sing, to give warmth and depth to the sound, to bring out the
imagination of dynamics and different colours by the 'toucher' - all these
things are ignored by this "modern" (?) music. (We should call
it 'contemporary' instead of 'modern', because modern means "usual and
Of course a lot of important things connected with playing the harpsichord
in an historical manner cannot be used in contemporary music without
looking like a quotation or caricature, such as e.g. specific
[By the way: Concerning the discussion about "style" - in my opinion
ornamentation is one of the most important indicators of style (not only in
western music: look at classical North Indian music or Persian music!)]
Some of the 'modern' harpsichord compositions I have seen, are (I have to
admit) very demanding in technique - but the technique which is demanded is
mainly pianists technique and not a harpsichordists one.
So, up to now I have decided not to play 'modern' music - the music of 17th
and 18th century (and sometimes 16th century) keeps me busy enough and
gives more than enough space to express what I have to express.