La La Land: Original Motion Picture Score

Jazz pop blends the melodic immediacy and song structures of pop with the harmonic richness, phrasing, and instrumentation of jazz. Typical arrangements feature piano or guitar-led rhythm sections, upright or electric bass, light drum kits (often with brushes), and tasteful horns or strings. Harmonically it favors extended chords (maj7, 9ths, 13ths), ii–V–I cadences, and sophisticated substitutions, while rhythms range from gentle swing and bossa nova to straight pop backbeats. Vocals usually emphasize warm timbres, nuanced crooning, and elastic, behind-the-beat phrasing. The result is urbane, approachable music that keeps pop’s hooks and forms while carrying jazz’s color and elegance, making it a perennial crossover sound for radio, lounges, and contemporary singer‑songwriters.

Soundtrack is music created to accompany and enhance visual media such as film, television, and video games. It includes original scores (instrumental or vocal music composed specifically for the picture) and, at times, curated compilations of pre-existing songs. Stylistically, soundtrack is a meta-genre that can encompass orchestral symphonic writing, jazz, electronic and synth-driven textures, choral forces, popular song, and experimental sound design. Its defining trait is functional storytelling: themes, motifs, harmony, rhythm, and timbre are shaped by narrative needs, character psychology, pacing, and editing. Common features include leitmotifs for characters or ideas, modular cues that can be edited to picture, dynamic orchestration for dramatic range, and production approaches that sit well under dialogue and sound effects. Because it must synchronize to picture, soundtrack often uses clear dramatic arcs, tempo maps, and hit points.

Musical (musical theatre) is a narrative stage form that integrates songs, spoken dialogue, acting, and dance to tell a story. Its core aim is dramatic storytelling in which music advances plot, deepens character, and shapes emotional arcs, often through recurring motives and reprises. Developed primarily on Broadway (New York) and later the West End (London), the genre blends operetta’s melodic lyricism, vaudeville’s variety entertainment, revue’s song-driven showcase, and Tin Pan Alley’s popular songcraft. Musicals range from intimate chamber pieces to large-scale "megamusicals," and from traditional book musicals to rock, hip‑hop, and concept-driven works. The musical’s songbook has fed the Great American Songbook and popular music at large, while the stage craft has influenced film, television, and concert performance.