Grisey - An appraisal of Tempus ex machina
Posted in Research on November 19th, 2008 by JoshProbably I should introduce this paper, because it will be familiar only to the most hardened contemporary music researcher, at least in the English speaking world. It is Gérard Grisey’s Tempus ex Machine: A composer’s reflections on musical time, from Contemporary Music Review, 2:1, pp.239–275.
Firstly I think it would be a mistake to think that this paper is about time in music. The word time, when brought up in relation to music practice, usually recalls such words as ‘tempo’, ‘rhythm’, maybe even ‘groove’. However, although Grisey starts by talking about rhythm, he’s referring to the experience of music. Jonathan D. Kramer also talks about the same thing in more detail in his book The Time of Music: new meanings, new temporalities, new listening strategies (1988). Both of these are an attempt to justify or somehow examine the difference between time as experienced in normal life (clock time) and time as experienced in music (musical time). I must say I’m not a fan of his confusing categorisation of the different types of time (the skeleton of time, the flesh of time, and the skin of time), as they are hardly as elucidating as the rest of the text.
To delve straight into the text, I’d like to reinforce an element in my thinking that Grisey raises, which I call repetition, and he calls periodicity. We are examining the same concept from different angles, mine from the ‘material’ point of view and he from the ‘rhythm’ point of view, although with a certain leap of faith we could regard them as interchangeable (rhythm being the repetition of material). I quote Grisey quoting Abraham Moles “the notion of rhythm is linked to that of expectation”, and this in turn leads us to realise that a framework has to be established in order to perceive rhythm. Repetition is that framework - if we repeat a bar twice, we expect it a third time. If we have three bars of material and we repeat the first two, we will expect the third. If we play quavers in 4/4 for 10 bars and switch to crotchets, we gain the listener’s attention when we change. Grisey returns to the concept of periodicity at the end of the paper:
(b) The degree of salience of a sound of a sequence can help it to be memorized. A violent, unexpected sound, for example, can leave a lasting trace. This is the very purpose of contrasts.
(c) To the contrary, in the composition of certain types of processes, the difference between one event and the next is virtually nil (the degree of pre-audibility tends towards infinity).
At its most extreme, if this continuity is maintained thoughout the duration of a work, it is virtually impossible to memorize anything…
(d) The point of juncture between ordinary time and musical time is particularly salient. The beginning and end of a piece are strategic points in our memory.”
How many times have we sat through a piece that had beautiful material in, but an hour after the concert was completely lost from memory? Sometimes, as a composer, it is forgotten that the listener may only hear the piece once. We’d be very lucky if they sought out a recording of the piece (if one was even available), and even then there is a limited amount of listens a particular person is going to dedicate to it. What I am getting at is that there is a limited (set) amount of time available to develop and demonstrate your material. We are also assuming that our dutiful listener is even paying attention the whole time through the performance, that it’s not boring them or that they’ve even had to sit through five other difficult, new contemporary music pieces.
Coming back to periodicity, Grisey outlines his composition Périodes, in which he examines fuzzy periodicity. This is the idea of a constantly fluctuating pulse, determined by (statistically-speaking) a sort of normal distribution around a fixed pulse. I challenge this notion as a compositional parameter. A performer can never absolutely determine the time between actions, only estimate. So even the strictest tempo from a performer constantly fluctuates around an ideal tempo. So what Grisey is suggesting is already part of performance. True, what he is really saying is that he wishes to investigate this phenomenom, but the truth is that the contrast between the intentional fuzzy periodicity and real performer leeway is much more subtle than he imagines.
In the acoustic world nothing is exact. Everything is an approximation—even frequencies, partials, rhythms, tunings, scales etc. In the electronic world, introducing this human element—the almost random/approximate/fuzzy—becomes a lot of hard work and is not intuitive. Often we have to try to approximate live performance by reproducing certain elements of approximate rhythm, timbre etc., and even more frequently is this element completely ignored. The perfection of electronic sound is immediately identifiable if not directly describable. We can listen to a piece of music and identify the parts that have been sequenced (read: never been near an instrument) and those which are recorded from real life. Likewise the ear will immediately notice an exact loop and be less fatigued by an indirect repetition. That means more mileage out of the same material: not boredom but a chance to convey our point more clearly.
To recapitulate or not to recapitulate. Recapitulation has been a mainstay of composition for centuries, for the reason that the listener immediately identifies with and gets a (small) sense of achievement from having identified material that was presented earlier. This immediately links the composer, performer and listener in a chain of understanding, and probably more importantly, communication—even on the most basic level. For me it seems that without this basic premise the music has to be stylistically immediately identifiable. That is, the audience is going to the performance knowing the way in which you work and the boundaries of your compositional language (your ’sound’). They are prepared to be surprised, but they have a grounding upon which to base aural judgements.