Walter Marchetti

Avant-garde music is an umbrella term for boundary-pushing practices that challenge prevailing norms of harmony, rhythm, timbre, form, and performance. It privileges experimentation, conceptual rigor, and a willingness to reframe what counts as music at all. Historically tied to early 20th‑century artistic modernism, avant-garde music introduced atonality, the emancipation of noise, and new forms of notation and process. It embraces indeterminacy, extended techniques, electronics, spatialization, and multimedia performance, treating sound as material to be sculpted, questioned, and reinvented.

Animal sounds is a non-music, documentary-focused genre centered on the unaccompanied vocalizations and behaviors of animals—such as birdsong, whale song, insect choruses, amphibian calls, and mammal vocalizations—captured in the field. Rather than emphasizing melody, harmony, or beat, works in this genre present the acoustic ecology of a place and time. Producers often favor minimal processing to preserve scientific, educational, and experiential value, though some releases organize recordings into thematic "soundscapes" (e.g., dawn chorus, coastal rookeries). The genre is commonly used for education, research, relaxation, and as raw material for ambient, electroacoustic, and sound art contexts.

Bird sounds is a non-music audio genre centered on the recording and presentation of avian vocalizations—songs, calls, alarm notes, wing sounds, and choruses—captured in natural habitats. Releases typically feature unprocessed or minimally edited field recordings that highlight species identification, behavior, and ecological context. While often issued as documentary or educational material for ornithologists and birders, bird-sound albums have also been widely used for relaxation, meditation, film and game sound design, and as source material in electroacoustic and ambient composition. Projects range from single-species studies to immersive “dawn chorus” soundscapes and region-focused guides.