String Quartet 1931 is one of the more celebrated works in the 20th century chamber music repertory, and the third and fourth movements have received much attention from critics, musicologists, and historians. All four movements show varying degrees of organizational frameworks. Rather than relying on the technical capabilities of the instruments, Crawford relies on instrumental timbre and the balance of textures. The piece's anticipation of rhythmic techniques have been associated with
Elliott Carter, while the independent and asymmetrical part writing has been attributed to
Charles Seeger's method of dissonant counterpoint. The "wedging motion" is another prominent feature of the second movement. In this context, the wedging motion is the motion from an initiating
dyad toward a central destination dyad by steps or skips. This concept highlights the process of reaching a point of convergence. Its role within the overall structure of the movement is to articulate contours that contrast the contour of the two-octave scales and sequences. The repeated use of wedging motions that remain constant throughout the movement unify the movement.
III. Andante This movement provides an example of total organization of many musical features: pitch rests, rhythm, dynamics, tempo, instrumentation, and form. The pitch content remains free throughout, but the dynamics and rhythm are controlled. Crawford structures this movement around a dynamic design that Seeger called "dynamic counterpoint." Each instrument has its own pattern that constantly changes, in which every pitch swells in the middle of the tone. The combination of these tones, with its rhythmic and dynamic patterns, create a pulsing sound effect that fade away. This "almost impressionist" has been described as sounding
Bartókian.
IV. Allegro possibile Crawford never provided a program for the fourth movement, but it appears that she intended for it to resemble a dialogue. In her own analysis of the movement, she designates opposing parts—Voice 1 for the first violin and Voice 2 for the second violin, viola, and cello. In her personal copy, she replaced the "Allegro possibile" with "'Allegro quasi recitative",
recitative begin a vocal style that imitates speech. The two voices do not have a typical relationship of melody and accompaniment. They are designed to contrast each other as if in a vigorous dialogue. The pitch classes of Voice 2 are derived from a single ten-note series, which is typical of Crawford's usual melodies. The series is systematically rotate and transformed in a serial manner. The tonal material of Voice 1 contrasts that of Voice 2. Whereas Voice 2 has strict serial rotations, Voice 1 flows freely. It is characterized by qualities that are typical of Crawford's other free melodies. Although the two voices do not share many of the same intervals, the same segments that are heard as Voice 2 rotates complements Voice 1. Her allusions to dialogue are the subject of many analyses. Hisama finds that the discourse reflects Crawford's experience of professional marginalization, with Voice 1 taking on an assertive, female persona, while Voice 2 represent the a rigid collective voice of male authority. In contrast, Straus describes the fourth movement as a narrative about conflict and mediation. The independent nature of the first violin can be perceived as "masculine," and despite the conflicting melodies, they still share a sense of cohesion and belonging. Both analyses could be plausible, as Straus has noted that her music "offers multiple perspectives, and privileges none of them." The dynamics of the two voices are independent. Voice 1 aims to achieve rhythm fluidity by using an assortment of eighths, dotted quarters, ties, triplets, quintuplets, and sextuplets. In contrast, Voice 2 has a rigid character that is constructed of constant single rhythmic values that are executed through irregular bowing patterns. Throughout the movement, the opposing voices alternate and overlap. Mathematical structuring can be seen in this movement. Her precompositional strategies often incorporate number centricity and can manifest in various musical domains. According to Seeger, the operative number is ten. Mark Nelson has praised Crawford's inventiveness in adapting both Seeger's theories and the palindrome as a formal device. He has implied that experimental techniques that she incorporated to her compositional style around 1930 were all based on Seeger's doctrines. == Composition ==