This blog was first published by Oxford University Press:
http://blog.oup.com/2016/10/quarter-note-eighteenth-century-rhythm/
If you were to ask a modern musician what the quarter note
means in Common Time the answer would be simple: “It lasts for one full beat,
to be released at the beginning of the succeeding beat.” Ah, but eighteenth-century
rhythm reading is not a simple
“one-size-fits-all” affair. Just as spoken language has evolved over time, so has
music notational language. The notation
has remained much the same; it is how the notation is read that has
changed. So, how is the quarter note
quandary solved? Gazing at the issue through
an eighteenth-century lens will answer the riddle.
Eighteenth-century style is one of clarity – expressive
rhythmic clarity – that projects character or affekt through the notation at hand. And the crisp, articulate fortepiano is the perfectly
suited instrument for executing the style. All rhythmic elements are chosen to
reflect affekt; so much so that when
certain elements are present a particular affekt
is understood. The Rhythm Schemata diagram provides insight to the interacting
elements:
Rhythm Schemata
Notice that affekt is
at the center of the wheel. All
notational decisions – appropriate tempo and meter, carefully crafted formal
and phrase structure to allow for execution of rhetoric, and specific rhythm
choices – are made to express the desired affekt.
Execution of the quarter note varies greatly depending on tempo
and meter choices, which are directly related to period dances. For example, a march in duple meter commands a
different affekt than a minuet in triple meter. Just like there
are heavy and light meters, note values act in much the same way. A time signature with a 2 in the bottom denotes
heavy affekt, one with a 4 lighter,
and one with an 8 in the bottom lighter yet.
Note value choices within the meter provide execution clues. For instance, a piece made up primarily of half
and quarter notes would be heavier than one of eighth and sixteenth notes. A comparison of Beethoven’s Piano Sonata, op.
10, no. 3 to his Piano Sonata op. 14, no. 2 demonstrates how note values take
on differing character based on these period practices. So, the quarter note may
take on a variety of characters, and consequently lengths, based on affekt.
Today, legato is the ordinary way of playing. If a line is presented with no markings (staccato or legato), the performer assumes to play legato, holding every rhythm for the full value. Not so in
eighteenth-century style. This is where
the answer to the riddle lies: The
quarter note is held for its full value only when it occurs under a slur or a
tenuto marking. How long should
it be held? Just when is it appropriate
to release the quarter note? This is
where affekt is essential (and why it
is at the center of the wheel). Depending on affekt, a quarter note may be cut quite short (like a crisp timpani
attack) or held for most of the beat (as in a forlorn oboe solo). One must turn
to the nuances of notation – formal
structure, meter, expression marks, dynamics, and beaming – for clues.
Taking specific steps will facilitate creating a
rhythmically authentic and personal eighteenth-century style on the modern
piano.
- Begin with Urtext
editions. It is essential to work from an authentic score to determine how best
to follow the clues left by the composer rather than an interpretation offered
by an editor.
- During initial experiences work with a piece that contains simple
textures and is quite bare (few slurs or dynamic markings). Simple dances from
Mozart’s Klavierstücke, Beethoven’s German Dances, or Piano Sonata in C
Major, K. 545 by Mozart are good starting places.
- Do some digging: What dance is being described? Is the meter
heavy or light? In context, are the note
values heavy or light? Unearthing answers will impact the length of the quarter
notes.
- Hold the quarter notes for full value only when under a slur or tenuto.
- Strive for a strong metrical pulse. The down-beat is
extremely important in this style.
- Allow the energy and expression (determined by the affekt) to influence carefully placed
timing and rubato within metrical
boundaries.
- Sing each line; this will go a long way in deciding tasteful
rhythmic length and timing.
- The fortepiano’s strength is crispness and clarity of tone,
the modern piano’s is to produce a long, legato line. Listen carefully and
continually. Adjust to the feedback from
the instrument to prevent a choppy tone and choked endings of phrases.
Hear the improvement in the sound aesthetic as you move
through the following audio examples: 1) a frequently-heard modern rendition, 2)
an interpretation on a Belt-Walter replica ca. 1780’s five-octave fortepiano,
and 3) a reconciled and historically informed rendition on a modern piano. The
energy and vibrancy provided by using period rhythm-reading strategies is
markedly noticeable.
Taking the time to view the score through an eighteenth-century
lens and apply the period performance practices judiciously to modern playing provides
the opportunity to discover an old language that may be recreated in a new
way.