Label: Room40

豪華52ページブック付き!!激渋なパルス録音!!イランのエレクトロニックミュージシャンにしてサウンドアーティスト/研究者であり、特殊なソフトウェアとハ​​ードウェアを使用し電子音楽、キネティックなサウンド彫刻、インスタレーションまでを展開する、超アカデミックな分野で活動する人物mHzことMo H. Zareei。過去に米Important Records / Cassaunaから音源を発表している人物の2026年新作[Prime Frequencies]。サイン波を用いて様々な種類の素数が持つ音響的特性を探求するシリーズであり、アルゴリズム的/偶然性を伴う作曲技法によって制作された超ミニマムなパルス音源47種からなる高内容。硬質な音色とリズミカルなシーケンスが「バツッ！バツッ！」と弾け飛ぶクールな構造にヤられます。ブックには各楽曲を表現した"スペクトル・アートワーク"を掲載。











Within all things audible, sine waves are arguably the simplest, yet most fundamental elements. They are consists of a single frequency and cannot be stripped back any further. On the other hand, as stated in the Fourier theorem, virtually all complex sounds can be broken down into a series of simple sine waves.

In 2020, I was invited by Nicolas Bernier to create a work centred on sine waves as part of his collaborative research-creation project at the University of Montreal. Thinking about such unique qualities of sine waves directed me to a somewhat similar phenomenon elsewhere: prime numbers. A prime number cannot be divided by any number other than 1 and itself. At the same time, any other number can be expressed as a product of a series of prime numbers. Defined based on this seemingly simple premise, prime numbers have been pivotal to many significant mathematical conjectures and theorems for centuries. Therefore, at their core, just like sine waves, prime numbers are the simplest, yet most elegant and foundational entities within their respective systems.

Prime Frequencies explores the sonic qualities of different prime number categories through sinusoidal sound waves. The series is structured into 47 pieces created using a number of algorithmic and aleatoric compositional techniques developed in the programming language ChucK. Each piece presents a unique sonification of the prime number category it is titled after, with all frequency and time-domain values determined by primes within that category.

The project is presented in two different formats: the album version and the code version.

The album version comprises a one-off rendering of the code that has undergone basic audio processing and is intended for more conventional modes of distribution and listening. As the perceived loudness of incoming sound waves changes drastically according to their frequency, this version is meant to provide a more standard listening experience.

The code version of the project (available as a bonus item with this release in both web-based and local formats) includes the complete code developed for the project without any further audio processing or modification. The web-based format can be run directly in a browser. Alternatively, using a set of basic instructions, the source code can be downloaded and compiled locally using any operating system's command line. In either format, the series can be experienced interactively: the listener can use keyboard shortcuts to navigate between different pieces or to view information about the specific prime number category that each composition is based on. The code version also includes a visual accompaniment displaying the numeric values of the prime numbers that represent the frequencies of the active sine waves throughout.

Due to the real-time nature of code execution in this version, pieces that involve aleatoric parameters and generative processes will be generated and experienced slightly differently each time they are played. Considering the lack of further audio processing, the sonification of prime frequencies in the code version is experienced in its most raw and direct form. In this version, the perceptual capacities of the listener’s auditory system and the audio playback setup they use add an important final touch to the reception of the work.

Ultimately, the project invites listeners to experience the idiosyncrasies of prime numbers through the most elemental form of sound: the sine wave.