Friday, October 13, 2017

My Clavichord

Most people who visit my office at the church think that I have a work table to the left of the computer. Few people know that it is a clavichord.

I built it from a kit which was sold by the Burton Harpsichord company, which I think no longer exists. This was in the late 1970’s, when I lived in my grandfather’s old farm house and for the only time in my life had a fine large workshop. I thought that I would be there for the remainder of this mortal life, and that the clavichord would be a fine addition to the old upright piano that was my other instrument. The kit cost around $200 as I recall, which was a huge sum for me in those days.

I have never played the clavichord as much as I would have liked, partly because I did not stay in that house long. When I left a few years later to go to the Choir College, I packed it into a crate and put it in storage, for I was headed for a dormitory room. After that, I worked in the Caribbean, and left the clavichord and my furniture and most of my books in the storage warehouse until I could get properly settled. It was good that I did, for my path soon took me to Tennessee. At that point, many years after going into storage, I set up the instrument in our basement at home.

I played it some, but we lived across the street from my church, so it was generally more productive to go over there and practice on the piano and organ. It had suffered from its years in storage; the frame warped somewhat (which I gather is common for the instrument), causing the soundboard to develop a large crack, decreasing its already small resonance.

Two moves later, it landed in its current location, even worse in condition from its travels. I soon piled it high with things to be done, most notably the five boxes of single-copy anthem octavos left by my predecessor. It has taken me seventeen years to work through them and finally clear the top of the instrument.

I did play it occasionally, an undertaking that required moving the boxes and piles of music from the clavichord lid to the floor. That was enough resistance to make my playing very occasional, indeed. Sometimes years would pass without the lid being opened.

As mentioned, I finally dealt with the thousands of octavos, quite a few of them finding a home in my own octavo file on the shelves. But there was still resistance to playing the instrument. There was a broken string. Many of the notes did not play properly. It was badly out of tune. I put it on my task list, but I could not justify a high priority; it was a “someday/maybe” task, labeled “low priority” to make it even less likely to be done.

Today, out of the blue, I had the right energy to deal with it. I repaired the string. I adjusted the tangents (see below) so that all of the notes played properly. I tuned it – to B flat equals 440, a half-step low, to protect its forty-year old brass strings from breaking. All told, it was the work of about two hours, a task of such small size that I should have done it years ago – as I should have finished dealing with all the music on top of it.

What, you may ask, is a “tangent”?

The clavichord is not the oldest of keyboard instruments – that honor goes to the pipe organ – but it is the simplest. The keys are simple levers. Towards the back of each key, there is a short piece of brass rod, filed to a dull knife-edge at top – this is the tangent. When the key is pressed, the back end rises and the knife-edged top of the tangent contacts the string, which vibrates and makes a soft sound. When the key is released, the sound stops. That is it. No complicated mechanism as there is for the modern piano, or even the harpsichord – and the organ most of all!

Many of the tangents were out of adjustment because of the case warpage – their relationship to the strings above them was not quite the same as it had been when I built it. When the tangent rose to the string, the string would slip off the front or back of the tangent, or in the worst cases, the tangent would miss the string altogether. The fix is simple: remove the key, bend the tangent (holding it with two pairs of pliers so as not to split the wooden key), put it back in, try it and see if it works properly. If not, repeat until it does.

It is not difficult at all, though it does take some patience.

The result: I think it sounds pretty good. Obviously it would sound better were I to disassemble the whole thing, true up the case framework so it is square, replace the soundboard, and restring it with new wire. Perhaps in my retirement; certainly not before.

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I could learn much from playing the clavichord. It demands (and, I suspect, teaches) a most gentle and even touch. The slightest movement of a finger produces a sound, and the slightest difference in pressure from one note to the next is noticeable in the sound. It teaches careful listening to the shaping of phrases, to balance between multiple notes in a chord, or contrapuntal lines.

In a way, I have not been ready to attempt the instrument until now; I needed to make a beginning with improvisation first, for the clavichord is a magnificent instrument for the improvisatory art, perhaps the best of all.

We shall see where this leads. I have made a note in my task management system to improvise at the clavichord at least twice a week – perhaps by candlelight on Wednesday and Sunday nights when my other work is done. I think that this might be the best setting for it.

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Here is a YouTube demonstration of a Clavichord by Han Ding, a playing of the Aria from the Goldberg Variations on his modern instrument. I chose it over the other YouTube clips that came up in a quick search because it gives a more realistic impression of the volume – that is, very soft.

My instrument is not so handsome as the one in the clip, but is similar in layout. It is most decidedly inferior in every way to the instrument in the next clip, a playing of the same piece on an historic instrument at the Metropolitan Museum of Art. It is a good example of how a clavichord can look – notice that the inside of the lid is a fine oil painting; this was not uncommon in the old days. But for the recording, the instrument is miked very close and loud; you can get a sense of this from how loud the action noise is, such as when he lifts his hands from the keys at the end. It does not give as good of an impression of what it actually sounds like as the previous clip.

Keith Jarrett did an LP recording of improvisations on the clavichord: “The Book of Ways.” I do not think it is his best work (and like most of the clavichord recordings on the Net, it is mastered far too loud!), but I should continue to listen to it for guidance. Some of the LP tracks are on YouTube; here is one that I like.

This sort of playing is what I would like to do with the clavichord. I doubt that I will ever advance sufficiently to play Bach effectively on it, but improvisation at a sufficient level to please myself might be possible. I think that this work may help my playing of the piano and organ and my general musicianship. It may prove worthwhile for its own sake.

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