Final answer:
Fans of swing music could discern star soloists by their unique timbres, along with melodies and rhythmic patterns, much like identifying a person's voice. Timbre is determined by the combination of sound wave characteristics and helps in recognizing different instruments or voices.
Step-by-step explanation:
Swing fans could indeed identify star soloists by their timbres, melodies, and rhythmic phrases. This ability to distinguish musicians by the unique quality of their sound, known as timbre, is akin to recognizing someone's voice. Timbre does not refer to the pitch or wavelength of the sound, but rather the quality that makes one instrument or voice sound different from another even when playing the same note at the same loudness. The timbre of a sound is affected by the complex interplay of frequency, amplitude, and timing of sound waves. Regarding the provided statements, the notion of separate spheres and the Cult of Domesticity did indeed allow the American middle class to distinguish themselves from the working class, so the answer would be true. Early Methodists were called so because of their methodical approach, hence this statement is also true. Waves can superimpose even if their frequencies are different, so this statement is true. Lastly, the market revolution significantly transformed social and economic aspects of the United States, making this statement true.