There is a peculiar irony in composing a musical identity for a radio station. The whole point of the exercise is to make something instantly recognisable, a few seconds of sound that will lodge itself in the listener's memory and announce the arrival of a particular broadcaster. Ideally, it should be distinctive without becoming annoying, memorable without demanding too much attention. A rather difficult brief, then, for anyone with experimental tendencies. Felix Kubin and Asmus Tietchens have taken this modest exercise in acoustic branding and turned it into an elaborate investigation of musical identity, memory and deformation. "Senderkennungen", their first official collaborative album, begins with a series of miniature radio signatures composed by Kubin and proceeds to dismantle, stretch, distort and reassemble them with Tietchens. The result is a double album that treats the humble station jingle as a surprisingly fertile object of sonic archaeology. Somewhere, a marketing department is probably wondering what went wrong.
The two musicians hardly need an introduction to anyone familiar with the more eccentric corners of German electronic and experimental music. Born in Hamburg in 1947, Asmus Tietchens has been developing his singular approach to sound since the 1970s. His first solo album, "Nachtstücke", appeared in 1980, followed by a period of more rhythmically and harmonically oriented electronic music before "Formen letzter Hausmusik" (1984) established a much more radical direction. Since then, he has released an extraordinary number of recordings, exploring everything from everyday noises and acoustic debris to sine waves, industrial textures and carefully constructed electroacoustic abstractions. His work is often marked by a sceptical, occasionally bleak sensibility, with references to the Romanian philosopher Emil Cioran appearing throughout his discography. Tietchens has also received the prestigious Karl Sczuka Prize twice, for "Heidelberger Studien 1–6" and "Trois Dryades". He is an artist who has spent decades questioning what sound can be once it has been separated from the familiar functions we assign to it.
Felix Kubin, born in Hamburg in 1969, approaches the experimental tradition from a rather different direction. His musical activities began remarkably early, with homemade recordings on a four-track machine at the age of twelve. Since then, he has developed an unruly practice encompassing electronic pop, experimental radio plays, electroacoustic composition, orchestral writing, performance and interdisciplinary projects. His Gagarin Records label has provided an outlet for his own work and that of numerous fellow travellers, while his involvement in Hamburg's Papiripar festival reflects a longstanding interest in the exchange between music, performance and other artistic disciplines. Kubin's work thrives on the collision between seemingly incompatible contexts: avant-garde composition and pop culture, absurdist humour and serious sonic investigation, the concert hall and the club. His ability to shift expectations without losing his sense of play makes him an especially appropriate partner for Tietchens. Their friendship dates back to the early 1990s, but "Senderkennungen" is their first recorded collaboration presented as a joint album. A long courtship, certainly, although neither party appears particularly interested in conventional romantic gestures.
The concept is deceptively simple. Kubin originally composed a series of short "Senderkennungen", or station identifiers, commissioned by radio broadcasters seeking new acoustic signatures or a refresh of their existing sonic branding. Each miniature lasts approximately five seconds, functioning as the audible equivalent of a station logo. Some are tonal and melodic, others approach atonality or noise. These tiny compositions were subsequently selected as the source material for a second stage of work, in which Kubin and Tietchens transformed them into longer pieces. Their self-imposed rule was to preserve the recognisability of the original material while allowing virtually any form of manipulation: stretching, shortening, expansion, modification and rearrangement. Each resulting composition had to remain under three minutes. Such restrictions might sound like a bureaucratic nuisance, but here they provide the necessary friction. The musicians are free to interfere with the material, provided they do not completely erase its identity.
The first side of the album presents the original nineteen identifiers in rapid succession. "Antenne Belgrad", "Freies Danzig", "Funkstelle Freiburg", "Krimikanal", "Lumière de l'heure", "Monogramm 95,0" and the remaining titles form a peculiar miniature atlas of imaginary and real broadcasting territories. Their brevity gives them an almost ceremonial quality: each appears, establishes its character and disappears before the listener has time to become too comfortable. Some sound like fragments of electronic fanfares, others like miniature signals from an alternate history of broadcasting. There are tonal gestures, odd melodic turns, dissonant accents and little eruptions of synthetic activity. The pieces are too short to develop conventional structures, but their compressed forms make every detail significant. A single interval, timbral shift or unexpected noise can become the entire personality of a composition.
Heard consecutively, these originals also reveal how much identity can be communicated through remarkably little information. The difference between one station and another may be no more than a change in pitch, a different rhythmic accent or a slightly peculiar electronic timbre. Yet these tiny gestures are enough to establish a recognisable character. The effect is amusing, but also subtly unsettling. Modern life is saturated with acoustic logos, notification sounds, corporate jingles and other attempts to occupy the smallest available corners of our attention. Kubin's miniatures expose the artificiality of this process without becoming simple parodies of it. They are genuinely inventive little compositions, even when their intended function is essentially commercial. Their subsequent transformation makes the question of ownership and identity considerably less straightforward.
The second half of "Senderkennungen" is where the real conversation begins. The original material is no longer presented as a sequence of finished signals, but as something malleable, open to interference and reinterpretation. "Antenne Belgrad", for instance, expands into a longer construction in which the initial musical identity becomes the starting point for a more elaborate electronic environment. "Freies Danzig" and "Funkstelle Freiburg" undergo similar changes, their original gestures retained but placed in unfamiliar surroundings. The relationship between source and transformation is never entirely predictable. Sometimes the original character remains relatively clear; elsewhere, it appears only as a faint trace beneath layers of processing.
Tietchens' particular sensitivity to the physical properties of sound is crucial here. His interventions often seem less concerned with developing Kubin's material in a conventional compositional sense than with examining what happens when its internal structure is disturbed. A melodic fragment can become a mechanical pattern, a short tonal gesture can acquire an almost industrial weight, and a recognisable sequence may be reduced to a strange residue of its former self. Kubin's more playful and occasionally pop-oriented instincts provide a counterbalance, preventing the album from becoming an overly solemn exercise in sonic dissection. Their different sensibilities do not cancel each other out; they generate productive uncertainty.
The transformations of "Radio Dipol", "Radio Dreiton" and "Radio Osservazione" are particularly interesting in this respect. The latter is divided into two parts, suggesting that even the original identifiers do not necessarily possess a stable or singular destiny. Across the album, the musicians move between tonal fragments, noisy interventions, synthetic abstractions and more rhythmically defined passages. The pieces remain concise, but their brevity does not prevent them from becoming surprisingly complex. Indeed, the three-minute limit seems to encourage a certain compositional efficiency. Ideas are introduced, subjected to interference and withdrawn before they can become comfortable. The music rarely indulges in the sort of prolonged development that might turn the exercise into a demonstration of processing techniques. There is a welcome sense that both artists understand when to stop, an increasingly rare virtue in a world where every software plugin seems to encourage another fifteen minutes of exploration.
The later pieces, including "SFB", "Silverline 89", "Soft Per Minute", "Sonovox FM" and "Spektrum des Glaubens", continue to investigate the distance between a recognisable musical identity and its distorted reflection. Their titles retain the bureaucratic precision of the original commissions, while the sounds themselves become increasingly difficult to associate with any practical broadcasting purpose. The effect is not unlike listening to the internal machinery of a radio station after its presenters have gone home and the building has begun to dream. There is something faintly comic about the discrepancy between these administrative-sounding names and the strange acoustic worlds they introduce. A station called "Spektrum des Glaubens" might reasonably be expected to offer spiritual programming; here, it sounds more like an invitation to question whether the universe has correctly tuned its receiver.
The album's underlying subject is broader than radio, however. A station identifier is designed to establish continuity and recognition, but it also represents an act of exclusion: this is one station, not another; this is the signal you are meant to receive. By transforming these short compositions, Kubin and Tietchens expose the instability beneath that process. The original material remains present, but its meaning changes according to context, duration and treatment. A musical logo becomes a miniature composition, then a source for another composition, then something that may only vaguely resemble its starting point. Identity emerges as a process rather than a fixed property. This is a particularly appropriate subject for two artists whose careers have repeatedly involved dismantling the boundaries between noise and music, popular culture and experimental practice, composition and sonic research.
The double album is also an unusually satisfying example of a concept that genuinely generates musical material rather than merely providing a decorative explanation for it. The original identifiers are not simply included as an archival curiosity, nor are the longer versions conventional remixes intended to make the source material more palatable. The two approaches depend on each other. Hearing the miniatures first allows the listener to recognise the gestures that return later, while the transformed pieces retrospectively alter the perception of the originals. What initially sounds like a self-contained jingle may subsequently reveal itself as a fragment of a much stranger construction. The album therefore benefits from being heard in sequence, even if individual transformations can easily be revisited on their own.
There is, inevitably, a certain intellectual neatness to the project. Its rules are clear, its conceptual framework carefully articulated, and its two principal stages easy to understand. Yet the music avoids becoming an illustration of its own theoretical premise. The most compelling moments are those in which the relationship between source and result becomes uncertain, when the listener recognises something without being able to identify precisely what has survived. The work's humour also prevents its conceptual rigour from becoming oppressive. Kubin and Tietchens seem perfectly aware that the history of experimental music contains enough solemn declarations about the nature of sound to fill several radio frequencies. Their response is to make a game out of the machinery of recognition, without ever treating the results as disposable.
"Senderkennungen" is ultimately a meeting between two distinct musical temperaments, united by a long friendship and a shared suspicion of established categories. Tietchens brings his decades-long engagement with sound as physical material, while Kubin contributes a restless imagination shaped by electronic pop, radio culture and absurdist experimentation. Their first joint album does not attempt to reconcile their approaches into a single aesthetic. Instead, it creates a framework in which each can interfere with the other's ideas, allowing the original compositions to survive in altered forms. The limited edition of 300 copies seems almost perversely appropriate: an album about radio signals, transmission and acoustic identity destined to circulate among a relatively small number of physical listeners.
Perhaps the most satisfying aspect of "Senderkennungen" is that it turns a functional form of music into something genuinely unfamiliar without stripping away its original charm. The station identifiers retain their miniature melodic personalities, while the expanded versions reveal how much potential can be hidden inside a few seconds of sound. In an era when every platform, device and service insists on having its own sonic signature, Kubin and Tietchens offer a more interesting possibility: that identity might be something worth taking apart, if only to discover what else it can become. The radio may have lost some of its old magic, but its ghosts are clearly still broadcasting. And, judging by these transmissions, they have developed rather questionable taste in programming.