Le caviar rouge, extraits de la bande originale du film

Hollywood (as a music genre) denotes the stylistic language of American film music and screen musicals shaped around the Los Angeles studio system. It is characterized by lush late‑Romantic orchestration, bold leitmotivic themes linked to characters and ideas, and tightly synchronized cues that heighten on‑screen drama. While its orchestral core stems from European symphonic tradition brought by émigré composers, Hollywood music also absorbed American popular idioms—Tin Pan Alley songcraft, jazz/big‑band colors, and later rock, electronic timbres, and sound‑design—creating a flexible, narrative‑first style that can shift from sweeping romance to suspense, comedy, or spectacle within a single score. In practice, “Hollywood” spans two intertwined streams: (1) symphonic film scoring for dramas, adventures, epics, and animation, and (2) cinematic song forms found in screen musicals and contemporary film pop to carry story and character.

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.

West End refers to the musical theatre tradition centered in London’s West End, whose cast recordings, overtures, ballads, ensemble numbers and showstoppers form a distinctive repertoire. It blends theatrical storytelling with song, dance and orchestral accompaniment, ranging from "legit" (operetta- and classical-influenced) vocal writing to contemporary belt/pop and rock idioms. Its soundworld spans lush pit-orchestra orchestrations, witty lyrical patter, romantic ballads, comic numbers, and large choral finales, all designed to advance character and plot. As one of the world’s premier theatre hubs, the West End both preserves classic operetta- and music hall–era aesthetics and continually absorbs pop, rock, and filmic scoring techniques, shaping the global language of show tunes and modern musical theatre.