Lee Wiley

Big band is a large-ensemble style of jazz and popular dance music built around brass, reed, and rhythm sections playing arranged parts. Typical instrumentation includes five saxophones (often doubling clarinet/flute), four trombones, four trumpets, and a rhythm section of piano, guitar, upright bass, and drum set. The music emphasizes swing rhythms, call-and-response between sections, riff-based writing, and dramatic shout choruses, while leaving space for improvised solos. Born in American ballrooms and theaters, big band became the sound of the Swing Era, providing both music for dancing and a platform for sophisticated arranging and orchestration that shaped much of 20th‑century jazz and popular music.

Vocal jazz is a jazz tradition in which the human voice is treated as an instrument—matching the phrasing, articulation, and timbral nuance of horns or piano. Singers often improvise melodically and rhythmically, including using scat singing (nonsense syllables) to emulate instrumental solos. At the same time, many vocal‑jazz performances favor traditional, pop‑leaning song structures and clear lyric delivery, reducing the overall role of extended improvisation compared with small‑group instrumental jazz. Repertoires frequently draw from Tin Pan Alley and Broadway standards (the Great American Songbook), rendered with swing, ballad, or Latin feels.

Show tunes are songs written for stage musicals and revues, designed to advance plot, reveal character, or provide memorable set‑piece moments. They favor strong, singable melodies, clear structures (often AABA 32‑bar or verse–chorus), witty and narrative lyrics, and orchestrations that support drama and choreography. While rooted in the Great American Songbook, show tunes draw on operetta, vaudeville, ragtime, jazz, and popular songcraft, and they are typically performed by stage voices (from legit to belt) with pit orchestras. Because many became popular standards beyond the theater, show tunes occupy a central place in American popular music and are frequently adapted for cabaret, big band, and vocal jazz.

Tin Pan Alley refers to the late‑19th- and early‑20th‑century New York music‑publishing hub that industrialized the creation and promotion of American popular song. Centered around West 28th Street in Manhattan, publishers and song pluggers churned out catchy tunes for mass sheet‑music sales and vaudeville performance. Musically, Tin Pan Alley songs favored memorable melodies, clear hooks, and singable ranges, often set in 3/4 waltz time or 4/4 with light syncopation picked up from ragtime. The prevailing 32‑bar AABA form became a defining template, with diatonic harmony enriched by secondary dominants, circle‑of‑fifths motion, and occasional modulations. Culturally, Tin Pan Alley fed Broadway revues, vaudeville circuits, and later radio and film, laying the foundation of the Great American Songbook. Its output ranges from romantic ballads to novelty numbers and uptempo dance songs, shaping the language of American popular music for decades.