We think that water has no taste, because we were born with it in our mouths.
Most performers of art-music, even many Early Music specialists, believe that the subtle manipulation of rhythm for expressive effect – so-called tempo rubato – is an essential element of fundamental musicianship. To play in strict time is derided as mechanical, the work of “a poor block-head who hammers away in strict time without … artistic expression”. Teachers are advised that “a Metronome is apt to kill the finer Time-sense implied by Rubato”. “Variations of Tempo, the ritardando, accelerando, and tempo rubato, are all legitimate aids demanded by Expression. […] use is determined by sound judgment and correct musicianly taste”. Control of Rubato lies with the conductor, or in chamber music, with the soloist. It is expected that the accompaniment will yield to the melody.
But is Rubato really an Absolute, a fundamental quality of good musicianship that has never changed over the years? Scientific scepticism would encourage us to doubt this: after all, historical pitch standards, temperaments, tempi, and musical notation itself all show significant differences from current mainstream practice. Why should we expect Rubato alone not to have changed over the years?
Happily, solid evidence is available, from detailed analysis of historical gramophone recordings by elite performers throughout the 20th century. Much of our present knowledge comes from the wonderfully-named CHARM project in the UK (the Centre for the History and Analysis of Recorded Music, lots of materials available here), and Dorottya Fabian’s investigations into rhythm perception, expressiveness and emotion in music, and the Early Music movement & Bach performance, at the University of New South Wales in Australia.
[By the way, the current assumption that expressiveness is connected with Rubato is so strong, that I have suggested that researchers avoid the word ‘expressive’ in their questionnaires to listeners, since it will probably elicit responses about Rubato. A more searching set of questions might ask if the performance showed ‘signs of emotions’, whether the listener had detected the use of particular techniques (e.g. vibrato, rubato, tonal or dynamic contrasts) and (most tellingly) whether listeners themselves felt they had been touched by those emotions?]
Commenting on some results from the CHARM investigations at a recent conference of the Australian Centre for the History of Emotions, Nicholas Cook, 1684 Professor of Music at Cambridge University, described a significant change in the use of Rubato around the middle of the 20th century. Before the Second World War, performers followed what Prof Cook calls the ‘tent-pole’ model: the tempo slows down as the music approaches the important point, and speeds up again afterwards, just as the canvas of a tent rises to the point where the pole supports it, and then falls away again.
In the post-War period, a different model emerges, which I have christened the ‘tube-train’. Each phrase begins slowly, accelerates to the middle, and then slows again towards the end. The tracks for London’s Underground Railway, the ‘Tube’, descend out of each station, and ascend again to the next, to help trains accelerate away and slow down again.
There are some famous international Early Music ensembles that apply this Tube-Train Rubato to renaissance and baroque music. I speculate that this approach might be particularly favoured by directors whose formative years of high-level music education were in the 1950s.
Early Music ensembles with younger directors show other models of Rubato. The “Go-To” model, much in vogue amongst baroque orchestras in Germany and elsewhere is almost the opposite of the ‘Tent Pole’: the tempo accelerates towards the important point and dwells on this one note somewhat. This approach is associated with directorial comments and group discussion about ‘where does this phrase go to?’.
Another approach, which I’ve seen at work in renaissance polyphony, is what I call the “Smoothie”. Notated contrasts in note-values are reduced: long notes are cut short, short notes are taken more slowly. Or if the composer writes notes of equal length, the music generally slows down (from moderate tempo) or speeds up (from slow tempo, because the long notes are shortened). The Smoothie is sometimes the result of laziness in observing the written rhythms, or of sloppy bowing from string-players. But at higher levels, it is associated with performers who make sound-quality, fine tone-production, a high priority. Such performers elongate short notes, to make sure that even the little notes have the best possible sound quality.
Other genres of music favour different approaches. Most fans would agree that the emotional power of Heavy Rock is not lessened by that music’s strong rhythm in strict tempo. Mainstream jazz allows a degree of rhythmic flexibility (swing) within a steady underlying beat. In this style, soloists may float freely over a regular accompaniment in the rhythm section.
Such ‘cool rhythm’ might remind us of 19th-century descriptions of Chopin’s Rubato as “timeless melody over a timed bass”, which I shorten to TLM/TB. (I avoid terms like Chopinesque, since TLM/TB clearly pre-dates Chopin). In his book Stolen Time: The History of Rubato (Oxford 1996 details here) Richard Hudson “identifies and traces the development of two main types of rubato: an earlier one in which note values in a melody are altered while the accompaniment keeps strict time, and a later, more familiar, one in which the tempo of the entire musical substance fluctuates.”
Hudson’s book very usefully charts the recent history of Rubato, though his terminology of “Early Rubato” and “Late Rubato” has been criticised. I don’t claim that my own terminology is perfect, but to clarify my intentions, I will use the term ‘TLM/TB’ for melodic freedom controlled by a regular bass, keeping ‘Tempo Rubato’ for entirely Stolen Time. Notice Hudson’s characterisation of the ‘fluctuation of the entire musical substance’ in Tempo Rubato as ‘familiar’.
But what are the artistic and emotional results of this ‘fluctuation’ of musical Time? Assuming it is done deliberately and skillfully, what is its purpose?
Tempo rubato softens the sharpness of lines, blunts the structural angles… idealises the rhythm…. It converts energy into languor, crispness into elasticity, steadiness into capriciousness.
Wait a moment! Shouldn’t this ring alarm-bells for Early Music performers? Surely baroque music should have clear lines, strong structures, energy and crispness!! Why should we want to soften, blunt, make rubbery, unsteady and capricious a Bach fugue, a Lully overture or a Palestrina mass??? Perhaps things might have been different, before the year 1800…
The past is a foreign country, they do things differently there.
L. P. Hartley The Go-Between (1953)
At the very least, the blind assumption that Rubato is an unchanging, fundamental absolute is demonstrably unsound. Since we now know that our ‘familiar’ Tempo Rubato has a history of change across the 19th and 20th centuries, we should begin to enquire what approaches were taken to Tempo and Rhythm before 1800. But I’ll come to this Another Time.
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PS
The three quotations in the first paragraph are from Constantin von Sternberg Tempo Rubato and other essays (c. 1920) available here; Tobias Matthay Musical interpretation: its laws and principles, and their application in teaching and performing (c. 1913) details here ; and W.E. Haslam Style in Singig (1911) here. The remarks that Tempo Rubato softens, blunts etc were made by Paderewski c. 1909, published here. All these are cited – together with the general opinions summarised by my first paragraph – in the Wikipedia article on Tempo Rubato here.
I present Wikipedia not as an academic authority, but as a reliable indication of the consensus view amongst its self-selecting editorial group. Wikipedia is also a powerful influence on students seeking basic information.
My claim is that Wikipedia’s presentation of Tempo Rubato, with its bundle of early-20th-century citations (most of them pre-World War I), not only demonstrates the consensus view, but shows that consensus to be lacking in historical perspective (there is no suggestion that use of Rubato may be a changeable element of Period Performance Practice) and somewhat closed-minded (Chopin’s use of TLM/TB, also heard in 20th-century jazz, is rejected, even ridiculed). Yet in ‘the free encyclopedia anyone can edit’ that consensus view remains unchallenged. The article has not changed significantly over the last three years (accessed March 2011 and February 2014). Elsewhere in Wikipedia, debates rage between standard repertoire musicians and Early Music specialists, articles are aggressively edited back and forth between opposing camps, and moderators are kept busy damping down the flame-wars.
But Tempo Rubato circa 1910 is accepted as a universal truth. No-one even cares enough to debate it, even though the arguments are fierce over a few Herz up and down in historical pitch, or even for a few cents this way or that in historical temperaments. Get the flavour from the FaceBook Anti-Vallotti page here.
All this supports my claim that most musicians, even many HIP specialists, consider Rubato to be an essential element of basic musicianship, in spite of clear evidence that it is a historical and cultural variable.
But I urge readers of this Blog NOT to go and edit Wiki’s Tempo Rubato. Let’s leave it there, as a gloriously fossilised dinosaur, and (more seriously) as an indicator of the consensus view, so that we can see if there is any change over the next three years!
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Opera, orchestra, vocal & ensemble director and early harpist, Andrew Lawrence-King is director of The Harp Consort and of Il Corago, and Senior Visiting Research Fellow at the Australian Research Council Centre for the History of Emotions.












