B. Parmegiani

Acousmatic music is a form of electroacoustic composition created specifically for loudspeakers, where the audience hears sounds without seeing their sources. The genre privileges timbre, morphology, and spatial movement over traditional melody and harmony, and it is often experienced in darkened auditoria to sharpen attention to pure listening. Composers typically work with recorded or synthesized sounds—ranging from environmental recordings and instrumental fragments to purely electronic textures—then edit, transform, and organize them into a fixed medium. Performance focuses on diffusion: the live projection of a fixed track across a multichannel loudspeaker array to sculpt space and perspective in real time.

Electroacoustic music is a broad art-music tradition that integrates recorded acoustic sound and electronically generated or processed sound into coherent musical works. It privileges timbre, gesture, texture, and spatialization over conventional melody-and-harmony song forms, often employing tape manipulation, synthesis, live electronics, and computer-based signal processing. Works are frequently composed for fixed media (stereo or multichannel loudspeakers) and may also involve live performers who are transformed in real time. Concert presentation typically emphasizes spatial diffusion and immersive listening, and the repertoire spans concert works, radio pieces, installations, and soundscape compositions.

Musique concrète is an electroacoustic approach to composition that uses recorded real‑world sounds (objets sonores) as primary material rather than traditional instruments or notation. Composers edit, splice, loop, reverse, time‑stretch, filter, and otherwise transform these recordings to create works designed for loudspeakers. Emerging in late‑1940s France, it introduced acousmatic listening—focusing on the sound itself, detached from its source—along with a morphology‑based vocabulary of gesture, texture, and timbre. Historically realized on tape and now on digital audio workstations, musique concrète privileges montage and transformation over conventional harmony and meter, inviting listeners into a rich, tactile world of sonic phenomena.