Norbert Möslang

EAI (Electroacoustic Improvisation) is a largely quiet, reductionist form of free improvisation in which musicians sculpt sound in real time using electronics, extended techniques, and the ambient characteristics of the room itself. Instead of melody, harmony, or steady pulse, the music focuses on texture, timbre, micro‑dynamics, and silence. Sine tones, feedback, contact microphones, tabletop guitars, and laptops often replace traditional instrumental roles. The result is an austere, highly attentive music that treats each sound—however small—as a structural event. EAI is frequently associated with the late‑1990s Tokyo onkyo scene and parallel European reductionist circles. Performances are typically intimate, with players listening as much as playing, privileging restraint, duration, and the sonic grain of materials.

Noise is an experimental music genre that uses non-traditional sound sources, distortion, feedback, and extreme dynamics as primary musical materials. Instead of emphasizing melody, harmony, or conventional rhythm, it focuses on texture, density, timbre, and the physical presence of sound. Practitioners sculpt saturated walls of sound, piercing feedback, metallic clatter, contact-mic scrapes, tape hiss, and electronic interference into works that can be confrontational or meditative. Performances often highlight process and immediacy—improvisation, body movement, and site-specific acoustics—while recordings can range from lo-fi cassette overload to meticulously layered studio constructions. Though rooted in early avant-garde ideas, the genre coalesced as a distinct practice in the late 1970s and 1980s, especially through Japan’s ‘Japanoise’ scene, and subsequently influenced numerous styles across industrial, punk-adjacent, and experimental electronic music.

Free improvisation is a practice of spontaneous music-making that avoids fixed idioms, stylistic templates, and pre-agreed structures. Musicians prioritize listening, interaction, and the exploration of sound itself—timbre, texture, dynamics, and silence—over conventional melody, harmony, or pulse. Guitarist Derek Bailey popularized the notion of "non-idiomatic improvisation," describing a music that deliberately resists falling into recognizable genre habits. While often overlapping with free jazz and contemporary classical experimentalism, free improvisation is not confined to either. It welcomes any instrument or sound source—acoustic, electronic, or everyday objects—and frequently uses extended techniques, feedback, and unconventional performance gestures. Performances can range from whisper-quiet, pointillistic interplay to ferocious, high-energy noise, with the ensemble shaping form in real time through attention and constraint.

Experimental electronic is an umbrella term for electronic music that foregrounds exploration and innovation over convention. It treats the studio, computer, and synthesizer as laboratories, using techniques such as tape manipulation, modular and software synthesis, feedback systems, granular and spectral processing, algorithmic/generative composition, circuit-bending, and field recording. Rather than regular song forms or dancefloor functionality, it prioritizes timbre, texture, space, and process. Structures may be nonlinear or open-form; harmony is often non-functional or drone-based; rhythm can be free, irregular, or machine-deconstructed. The style overlaps with electroacoustic music, sound art, industrial, ambient, and noise while continually interfacing with club culture and contemporary art contexts.

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.