Ella Fitzgerald Sings the Irving Berlin Song Book

Traditional pop is the pre–rock and roll mainstream of American popular song, centered on the Great American Songbook and the crooner/orchestral style that dominated radio, records, and film musicals from the 1930s through the 1950s. It favors memorable melodies, elegant lyrics (often about romance), and lush arrangements for strings, woodwinds, and big band rhythm sections. Singers use close‑mic "crooning" to deliver expressive, legato phrasing over jazz‑tinged harmonies and steady, unhurried grooves. Typical forms include the 32‑bar AABA standard, with sophisticated but accessible harmony (secondary dominants, ii–V–I cycles, tasteful modulations) and an emphasis on interpretation—how the vocalist shades timing, dynamics, and diction to make a familiar song feel personal.

Swing is a jazz style centered on a buoyant, danceable groove created by a walking bass, four-to-the-bar rhythm guitar, a backbeat emphasis on 2 and 4, and a lilted “swung” eighth-note feel. Typically performed by big bands (saxes, trumpets, trombones, and a rhythm section) as well as small combos, it balances written arrangements with improvised solos. Hallmarks include call-and-response between horn sections, riff-based melodies, shout choruses that build intensity near the end of an arrangement, and rich sectional voicings grounded in blues language and ii–V–I harmonic motion. Tempos range from medium to brisk, serving social dances like the Lindy Hop and Jitterbug. Swing’s expressive phrasing, dance-floor focus, and sophisticated arranging made it the dominant popular music of the late 1930s and early 1940s.

Standards refers to the shared core repertoire of widely known songs in American popular music, especially those from the Great American Songbook. These pieces became "standards" because they have been performed, recorded, and reinterpreted across decades by countless singers and jazz instrumentalists. Typically originating from Tin Pan Alley, Broadway, and Hollywood films of the early–mid 20th century, standards are marked by memorable melodies, refined lyric craft, and harmonically rich progressions that invite interpretation and improvisation. Many use 32‑bar song forms (AABA or ABAC), employ circle‑of‑fifths motion, secondary dominants, and occasional key changes, and work equally well as ballads or swinging uptempo pieces. Today, standards function as a common language for jazz and traditional pop musicians, anchoring jam sessions, vocal recitals, and crossover projects while continuing to inspire new arrangements and recordings.

Jazz blues is a hybrid idiom that merges the expressive, melodic language and 12‑bar song forms of the blues with the harmony, improvisational vocabulary, and rhythmic feel of jazz. Typically, it retains a blues structure (often the 12‑bar form) while enriching it with jazz devices such as ii–V progressions, secondary dominants, turnarounds, tritone substitutions, and extended chords (9ths, 11ths, 13ths). The feel commonly swings, with walking bass lines, comping on piano or guitar, blue notes, call‑and‑response phrasing, and solos that mix blues scales with mixolydian and bebop lines. The result ranges from earthy shuffles to urbane, harmonically sophisticated vehicles for improvisation, sitting comfortably between New Orleans roots, Kansas City riff traditions, and modern bop language.

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.

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.