EXPRESSION, RHETORICS AND OVERINTERPRETATION
Dear Pe-Zulu:
I never said a very rhetoric interpretation is a bad one. As a matter of fact, rhetoric majors on broad crescendi and decescendi, and *not* necessarily on details. As you can see from other posts by me, I value a rhetoric approach to French music and, of course, to the stylus fantasticus. With Buxtehude, even if Walcha manages to give his full attention to structure, he is bound to look at detail, too: the musical content obviously requires it.
But, concerning Bach, let us be a little more scholarly. I don't have the references at hand, but I can look for them later. Carl-Philip-Emmanuel Bach said something like this: «X doesn't know how to play my works because he cannot give them expression; whereas he plays my father's works very well indeed, because, in such music, one only has to play the notes».
Another source (one is an independent one, two others stem from CPE again) explicitly state that Bach played fast. Fast and ingenuously, which I take to mean that there was a lot of phrasing.
All this points to a rather Rousset-like interpretation (I agree that Walcha is on another league than Rousset).
So, from historical grounds, not even my claim to structure is supported: a Martin Galling approach is all that the evidence suggests.
WHY STRUCTURE?
Most large Bach works are structurally very complex. This is, perhaps, more evident in his organ fugues than in his harpsichord ones, because the former are longer. Bach thins or swells the sound at will (without registration aids, just by rarefying the counterpoint and not applying the pedals) and even in relatively 'simple' fugues (a minor, for instance, the big one) there is a) a statement of the theme; b) an inner meditation of its meaning; c) a crescendo of desperation; d) a final apotheosis, very striking. This kind of structure is less evident in his shorter harpsichord fugues (but see BWV 904, the e major Book II, f Flat minor book II and many others).
So this is why structure is important: it is self evident in his major works. How do you achieve it? By being aware of a hierarchy of intensity in different parts. Take again the case of the a minor fugue I mentioned. You can play it fast throughout (àla Koopman), in the plenum, with the manual 16' principal engaged and all the bass stops in the pedals. What is made of the b) section? and the transition to c) section? You completely loose its importance and drama if you just go on playing. *These* are the moments to stress the difference.
EXPRESSION
What is meant by that? I think, that in the context of this dialogue, it is the accentuation of short phrases in order to produce a quick impression. Now if you only do that, you get the kind of Monica Hogget's Violin solos or the opening piece of the St. John by Koopman. Everything is important; you cannot tell the trees from the forest and, if you are like me, you will become bored stiff.
What about Leonhardt? I *never* said Leonhardt has no grasp on structure. As a matter of fact I explicitly said that I preferred his Froberger to Mortensen's precisely because of structure. What Leonhardt does is not what he says he does. What he does is to accent the more impressive bits but never so much as to upset the overall arching of the piece (his last WTC I fugue is an excellent example of that). So there is a kind of hierarchy of accents, and this is why he is excellent even if in his earlier records he can quite loose track of the structure (see is b flat minor WTC I fugue, where he pounds every bar, but his first Goldberg - Vanguard - is the prototype of what I am saying; also, listen to him playing the clavichord, and you will be horrified by the constant accenting of the strong beats in a very monotonous way). That said, I usually think Leonhardt plays superlatively well. His more recent appearances show a trend to state structure and not detail - perhaps a little too marked (I listened to him twice these last years: a very monotonous organ recital and a superlative harpsichord one). But that is the kind of evolution one witnesses in a musician: his means of expression become simpler. As another example of that listen to the somber and terrifying 1947 Walcha rendering of Bach's Sei gegrusset Jesu gutig, compare it to the more laidback Alkmaar one and to the almost ethereal Strasbourg version.
OVERINTERPRETATION
So I am not against expression. I favour a structural approach to expression, but I love the typical mature Leonhardt hierarchy of expression that lets the structure shine very evidently without sacrificing details (but not overdoing them).
That said, I believe all major musicians overinterpret Bach. Do you know what was the kind of organ sound Bach liked for his preludes and fugues? A plenum of the kind: Principal 16, 8, 4, 3, 2, VIII mixtur, Trumpet 16 plus Positiv Dulzian 16, Principal 8, 4, 2, 1 1/3, Sexquialter, Sharff, plus Oberwerk principals 8,4,2, Mixture and Zimbel (or Sexquialter) over a Bombarde 32' based Posaune 16', Trumpet 8, plus all the flues and mixtures, possibly with coupling from the Hauptwerk. This is a huge, striking, thundering sound and it is almost impossible to play with beats and articulation: the sound is just too thick. I personally like this kind of sound, but I favour the much more economical interpretations of Walcha, where every note is specifically linked to the next or to the previous one in a well thought off kind of detached, legato or spicato. But play with such a plenum and you will see it is almost impossible to do something of the sort (to begin with the action will be very heavy).
WHAT IS THE RIGHT INTERPRETATION OF BACH?
Of course there is not *one* way. There are several. But I was once convinced by an argument by Isoir: look at his handwriting: all is flow. Look at Buxtehude's: all is haughty and quite angular with big, superbly drawn, stylus fantasticus like arabesques. That is: Bach just *begs* the flowing interpreter. In a very short piece, like the individual movements of the English suites, this results in a kind of uniformity in each dance (save the Sarabandes and, of course, the preludes). In the even shorter French suites, what can you do but flow each dance into the next (with, of course, a few exceptions?
So yes, you have to play the right notes and *make the music flow*. This is quite the contrary to a flat Urtext approach. As I said before, it is much more difficult to do than to have a lot of small phrases linked by breathing points. But the flowing approach is, I think, what Bach asks for.
Let me give an example. In his chorals but chiefly in his organ fugues there is often the case where one note marks the end of a phrase but also the beginning of another; that is: you must accent the note as an 'end' but also as a 'beginning'. It is horribly difficult to do, because you have 3 or 4 more voices to concentrate on. Only a flowing approach can do justice to that. Otherwise you get a kind of hiccup, which is horrible. In his very few Bach organ records, Leonhardt prefers the hiccup. Just listen to his horribly square version of the Von Himmel hoch Variations; and then compare it to the marvelously flowing one by Walcha. To my mind, all is said.
CRITICS
I never said Leonhardt does not understand Walcha. I once was told by Koopman that he preferred the marvelously flowing Kempff's Bach to other harpsichordists'. Of course, Leonhardt hates Walcha's 'objectivity'; and Walcha hated Leonhardt's 'sensuousness'. That is not to say they don't understand. They are just poles apart. No, my criticism goes to the critics. I know some of them. They hardly know any music at all. They usually don't play. Those who do (there were quite a lot of them at Diapason - Adelaïde de Place, Roger Tellart, Michel Roubinet - but they have been replaced with new blood) usually valued Leonhardt *and* Walcha, Rousset *and* Asperen, Gilbert *and* Koopman.
So what am I saying? That at that kind of level, all are marvelous musicians. If one does not understand Rouset's playing there is plenty too choose from. But please don't tell me that Rousset just plays the notes, because that is demonstrably not true: flow is just the contrary to a 'square' approach.