Iambic Pentameter - Rhythmic Variation

Rhythmic Variation

Although strictly speaking, iambic pentameter refers to five iambs in a row (as above), in practice, poets vary their iambic pentameter a great deal, while maintaining the iamb as the most common foot. There are some conventions to these variations, however. Iambic pentameter must always contain only five feet, and the second foot is almost always an iamb. The first foot, in contrast, often changes by the use of inversion, which reverses the order of the syllables in the foot. The following line from Shakespeare's Richard III begins with an inversion:

/ × × / × / × / × / Now is the winter of our discontent

Another common departure from standard iambic pentameter is the addition of a final unstressed syllable, which creates a weak or feminine ending. One of Shakespeare's most famous lines of iambic pentameter has a weak ending:

× / × / × / / × × / (×) To be or not to be, | that is the question

This line also has an inversion of the fourth foot, following the caesura (marked with "|"). In general a caesura acts in many ways like a line-end: inversions are common after it, and the extra unstressed syllable of the feminine ending may appear before it. Shakespeare and John Milton (in his work before Paradise Lost) at times employed feminine endings before a caesura.

Here is the first quatrain of a sonnet by John Donne, which demonstrates how he uses a number of metrical variations strategically. This scansion adds numbers to indicate how Donne uses a variety of stress levels to realize his beats and offbeats (1 = lightest stress, 4 = heaviest stress):

4 1 1 4 3 4 1 4 1 2 / × × / × / × / × / Batter my heart three-personed God, for you 1 3 2 4 3 4 1 4 1 4 × / × / × / × / × / As yet but knock, breathe, shine and seek to mend. 1 2 1 4 1 4 2 4 1(1) 4 × / × / × / × / ×(×) / That I may rise and stand o'erthrow me and bend 1 4 1 4 3 4 1 4 1 4 × / × / × / × / × / Your force to break, blow, burn and make me new.

Donne uses an inversion (DUM da instead of da DUM) in the first foot of the first line to stress the key verb, "batter", and then sets up a clear iambic pattern with the rest of the line (da DUM da DUM da DUM da DUM). In the second and fourth lines he uses strongly-stressed offbeats (which can be interpreted as spondees) in the third foot to slow down the rhythm as he lists monosyllabic verbs. The parallel rhythm and grammar of these lines highlights the comparison Donne sets up between what God does to him "as yet" ("knock, breathe, shine and seek to mend"), and what he asks God to do ("break, blow, burn and make me new"). Donne also uses enjambment between lines three and four to speed up the flow as he builds to his desire to be made new. To further the speed-up effect of the enjambment, Donne puts an extra syllable in the final foot of the line (this can be read as an anapest (dada DUM) or as an elision).

As the examples show, iambic pentameter need not consist entirely of iambs, nor need it have ten syllables. Most poets who have a great facility for iambic pentameter frequently vary the rhythm of their poetry as Donne and Shakespeare do in the examples, both to create a more interesting overall rhythm and to highlight important thematic elements. In fact, the skillful variation of iambic pentameter, rather than the consistent use of it, may well be what distinguishes the rhythmic artistry of Donne, Shakespeare, Milton, and the 20th century sonneteer Edna St. Vincent Millay.

Several scholars have argued that iambic pentameter has been so important in the history of English poetry by contrasting it with the one other important meter (Tetrameter), variously called “four-beat,” “strong-stress,” “native meter,” or “four-by-four meter.” Four-beat, with four beats to a line, is the meter of nursery rhymes, children’s jump-rope and counting-out rhymes, folk songs and ballads, marching cadence calls, and a good deal of art poetry. It has been described by Attridge as based on doubling: two beats to each half line, two half lines to a line, two pairs of lines to a stanza. The metrical stresses alternate between light and heavy. It is a heavily regular beat that produces something like a repeated tune in the performing voice, and is, indeed, close to song. In fact, a great many songs and almost all jazz music are four-beat. Because of its odd number of metrical beats, iambic pentameter, as Attridge says, does not impose itself on the natural rhythm of spoken language. Thus iambic pentameter frees intonation from the repetitiveness of four-beat and allows instead the varied intonations of significant speech to be heard. Pace can be varied in iambic pentameter, as it cannot in four-beat, as Alexander Pope demonstrated in his “An Essay on Criticism”:

When Ajax strives some rock’s vast weight to throw,
The line, too, labours and the words move slow.
Not so when swift Camilla scours the plain,
Flies o’er th’unbending corn, and skims along the main.

The last line is in fact an alexandrine — an iambic hexameter, which occurs occasionally in some iambic pentameter texts as a variant line. Not only does Pope exemplify "swiftness" by rushing over 12 syllables in the place of 10; he actually implies 14 syllables in the place of 10 (not to suggest Pope would have read it this way), including 4 lightly stressed syllables (actual and implied) between the first 2 ictuses:

/ ×(×) (×)× / × / × / × / × / Flies o'er th'unbending corn, and skims along the main.

Moreover, iambic pentameter, instead of the steady alternation of lighter and heavier beats of four-beat, permits principal accents, that is accents on the most significant words, to occur at various points in a line as long as they are on the even–numbered syllables, or on the first syllable, in the case of an initial trochaic inversion. It is not the case, as is often alleged, that iambic pentameter is “natural” to English; rather it is that iambic pentameter allows the varied intonations and pace natural to significant speech to be heard along with the regular meter.