Alberta Hunter

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.

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.

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.

Vaudeville is a late‑19th to early‑20th‑century American variety stage tradition whose musical side blends comic songs, patter numbers, novelty tunes, sentimental ballads, ragtime interludes, and ensemble finales. It emphasized catchy melodies, memorable refrains, and clear diction so songs could land immediately with live audiences. Typical accompaniment was piano (often with a small pit ensemble of strings, reeds, and light percussion). Song forms favored verse–chorus and 32‑bar AABA structures, with simple diatonic harmony embellished by secondary dominants and ragtime‑style syncopation. Lyrics leaned into topical humor, character monologues, dialect turns (now recognized as historically problematic), and direct audience address. Unlike bawdier burlesque, vaudeville marketed itself as “family entertainment,” integrating music with comedy, dance, specialty acts, and novelty performance. Its stages and circuits incubated the American popular song, connected sheet‑music publishers with performers, and supplied early film and radio with talent and repertoire.

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).