Louis Armstrong

Adult standards is a song-based popular style and later radio format centered on the Great American Songbook and pre-rock era pop. It emphasizes sophisticated vocal performances, memorable melodies, and lush arrangements drawn from Broadway, Hollywood musicals, big bands, and jazz-influenced traditional pop. Typical recordings feature rich orchestration (strings, woodwinds, and brass), a polished rhythm section, and crooner-style vocals delivered with close-mic intimacy. Harmonies often include jazz chords, secondary dominants, and modulations, supporting elegant, urbane lyrics that focus on love, longing, and everyday romance. Although it predates rock ’n’ roll in repertoire, adult standards also encompasses later revivals and reinterpretations by contemporary singers who keep the classic songbook alive through modern recordings and live performances.

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.

The Harlem Renaissance, as a musical movement within a broader cultural flowering, crystallized in 1920s Harlem, New York City. It brought together jazz, blues, spirituals, popular song, and theatre music into a vibrant urban sound shaped by Black bandleaders, composers, singers, and pianists. Musically, it fused blues feeling with sophisticated arranging, stride-piano virtuosity, urbane songwriting, and dance-band propulsion. Call-and-response writing, riff-based textures, and blues-inflected melodies met polished Tin Pan Alley craft. The scene thrived in ballrooms and nightclubs like the Cotton Club and the Savoy, on Broadway stages, and at “rent parties,” where stride pianists drove social dancing and innovation. Beyond entertainment, Harlem Renaissance music signaled modern Black identity and artistry, catalyzing the transition from early New Orleans/Dixieland styles to the big-band swing era and laying cultural groundwork that later enabled bebop and modern jazz.

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.

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.

Dixieland is one of the earliest forms of jazz, crystallizing in New Orleans in the 1910s and spreading to Chicago and New York in the 1920s. It is characterized by collective improvisation, where the front line—trumpet or cornet carrying the melody, clarinet weaving countermelodies, and trombone providing "tailgate" harmonies and slides—creates a lively polyphonic texture over a buoyant two-beat feel. Its rhythm section often features banjo or piano, tuba or string bass, and drums playing parade-derived press rolls and stop-time figures. Harmonically it draws on functional tonality (I–IV–V with frequent secondary dominants), and structurally it favors 12-bar blues, 16-bar strains from ragtime, and 32-bar AABA song forms. Repertoire includes marches, blues, spirituals, popular songs, and Creole dances, rendered with a brassy, celebratory sound that evokes the New Orleans brass band tradition.

Jazz trumpet is the idiomatic approach to playing the trumpet within jazz, where the instrument often serves as a lead melodic voice and improvisational vehicle. It is defined by expressive tone production, swing phrasing, blues inflection, and a wide palette of articulations and effects such as vibrato, growls, half-valve smears, shakes, fall-offs, and the creative use of mutes (Harmon, plunger, straight, cup, and bucket). Across its history, jazz trumpet has adapted to changing harmonic languages—from early New Orleans polyphony and swing-era melodies to bebop’s chromatic lines, hard bop’s gospel- and blues-rooted intensity, cool and modal lyricism, avant-garde freedom, electric fusion, and contemporary post-bop and crossover forms. The role of the jazz trumpeter spans leading themes (heads), creating spontaneous melodies over standard song forms, shaping ensemble textures, and communicating an individual sound and time feel, whether laid-back, on top of the beat, or deeply behind it.

Jazz is an improvisation-centered music tradition that emerged from African American communities in the early 20th century. It blends blues feeling, ragtime syncopation, European harmonic practice, and brass band instrumentation into a flexible, conversational art. Defining features include swing rhythm (a triplet-based pulse), call-and-response phrasing, blue notes, and extended harmonies built on 7ths, 9ths, 11ths, and 13ths. Jazz is as much a way of making music—spontaneous interaction, variation, and personal sound—as it is a set of forms and tunes. Across its history, jazz has continually hybridized, from New Orleans ensembles and big-band swing to bebop, cool and hard bop, modal and free jazz, fusion, and contemporary cross-genre experiments. Its influence permeates global popular and art music.

Piano blues is a blues tradition centered on solo piano performance, where the instrument carries both rhythm-section drive and melodic lead. It fuses ragtime’s syncopation, early jazz phrasing, and the 12‑bar blues form into a percussive, highly expressive style. Hallmarks include steady left‑hand patterns (walking tenths, stride figures, broken octaves, and boogie ostinatos) supporting right‑hand riffs built from the blues scale, blue notes, crushed grace notes, tremolos, and call‑and‑response motifs. It flourished in saloons, rent parties, theaters, and recording studios, giving rise to regional approaches like Chicago’s understated, swinging shuffle and New Orleans’ rolling, rhumba‑tinged feel. Closely related to barrelhouse and boogie‑woogie, piano blues underpins much of later American popular music, feeding directly into jump blues, early R&B, rock and roll, and rockabilly.

Blues is an African American musical tradition defined by expressive "blue notes," call-and-response phrasing, and a characteristic use of dominant-seventh harmony in cyclical song forms (most famously the 12‑bar blues). It is as much a feeling as a form, conveying sorrow, resilience, humor, and hard-won joy. Musically, blues commonly employs the I–IV–V progression, swung or shuffled rhythms, and the AAB lyric stanza. Melodies lean on the minor/major third ambiguity and the flattened fifth and seventh degrees. Core instruments include voice, guitar (acoustic or electric), harmonica, piano, bass, and drums, with slide guitar, bends, and vocal melismas as signature techniques. Over time the blues has diversified into regional and stylistic currents—Delta and Piedmont country blues, urban Chicago and Texas blues, West Coast jump and boogie-woogie—while profoundly shaping jazz, rhythm & blues, rock and roll, soul, funk, and much of modern popular music.

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.

Gospel is a vocal-centered Christian genre whose lyrics explicitly express faith, salvation, hope, and communal testimony. Performances emphasize expressive lead vocals, choirs, call-and-response, and congregational participation, often supported by piano/organ, handclaps, and a rhythm section. While the modern form coalesced in the early 20th century through urban church music and the work of composer–leaders such as Thomas A. Dorsey, its roots trace back to earlier Christian hymnody and African American sacred traditions. Across cultures and denominations, gospel functions in worship, evangelism, community celebration, and—by the late 20th century—in commercial recordings and concerts. Stylistically, gospel spans traditional quartet and choir styles, “gospel blues,” and contemporary fusions with R&B, soul, pop, and hip hop. What unites these strands are dominant vocals, testimonial lyrics grounded in Scripture and lived experience, and a performance practice designed to move both spirit and body.

Ragtime is an African American–rooted piano style that flourished from the 1890s to the 1910s, characterized by lively syncopation in the right hand against a steady, march-like “oom‑pah” accompaniment in the left hand. Typically written in 2/4 or 4/4 time and notated with straight (unswung) eighth notes, classic rags unfold in multiple 16‑bar strains, often in the form AABBACCDD. The music draws on cakewalk rhythms, marching-band forms, and popular song, and it became a sensation through sheet music, piano rolls, and parlor performance. Scott Joplin, known as the “King of Ragtime,” helped codify the genre’s refined, compositional approach, calling for moderate tempos and a clear, singing melody. Beyond solo piano, ragtime was arranged for small ensembles and orchestras, found a home in vaudeville and dance halls, and laid essential groundwork for early jazz, stride piano, and much of 20th‑century American popular music.

A revue is a plot-light, multi-act stage entertainment that strings together songs, dances, comedy sketches, and specialty acts around a loose theme or topical satire. Unlike a book musical, a revue prioritizes spectacle and variety over narrative, showcasing chorus lines, star turns, witty patter songs, and lavish costumes and sets. Its musical numbers often reflect popular styles of their day (e.g., Tin Pan Alley, jazz age foxtrots) and can be easily excerpted as standalone songs.

Musical theatre and entertainment is an umbrella term for stage works that combine spoken drama with song, dance, comedy, and popular spectacle. It spans a range of formats—revue, vaudeville/variety, music hall, operetta, zarzuela, cabaret, and, later, the modern musical—that were designed first and foremost to delight broad public audiences. In theatre studies it is often treated as one of the four classical branches of the theater (alongside spoken drama, opera, and dance/ballet). Historically, it crystallized in Europe and the United States during the 19th century and flourished into the mid‑20th century, evolving in dialogue with popular music, dance fashions, and new technologies (from gas and electric lighting to film and radio).

Yodeling is a vocal technique and repertory defined by rapid and intentional alternation between chest voice and head voice (falsetto), producing audible register breaks on open vowels. Rooted most famously in the rural Alps, it functioned historically as long‑distance herding calls and community signals across mountains and valleys. Closely related practices appear in multiple cultures worldwide (e.g., Central African forest singing, Scandinavian cattle calls), underscoring yodeling’s role as a practical form of vocal communication as much as a musical idiom. Across the 19th and 20th centuries, yodeling moved from pasture and village dances into stage entertainment, commercial folk music, and North American country and western traditions, where it became a signature expressive device (“blue yodels,” cowboy yodels) and a symbol of pastoral nostalgia.