Sonamont

Press kit · Book & audiobook

Interference

From Harmonic Ratios to Geometric Forms. A book about pure intervals, microtonality, the overtone series and the hidden geometry of sound. Each entry pairs a concentrated reflection on one frequency ratio with its interference pattern — and every ratio in the book can be heard on a free companion page.

Cover of Interference: From Harmonic Ratios to Geometric Forms

Fact sheet

TitleInterference: From Harmonic Ratios to Geometric Forms · German: Interferenz: Von harmonischen Verhältnissen zu geometrischen Formen
AuthorChristian Klinkenberg — Belgian composer, PhD in the Arts (VUB / Royal Conservatory Brussels), creator of the multimedia opera format “Opera 2.0”
Subject43 frequency ratios, from familiar intervals into microtonal territory, each with its geometric interference figure
EditionsSeven language editions: German, English, Spanish, French, Japanese, Dutch, Portuguese (print and e-book)
AudiobookGerman edition, read by Elijah A. Chain, 2 h 16 min, unabridged; each chapter pairs a reflection with an audible example of the ratio
Companionsonamont.com/interference — all 43 ratios synthesised live in the browser, free
PublisherSonamont, Belgium · 2026

Where to get it

Cover art

Interference, English cover
English edition (1600 px, JPG)
Interferenz, German audiobook cover
German audiobook (1600 px, JPG)

Review copies (print or e-book, any of the seven languages) and interviews are available on request. Please name your outlet and preferred edition.

Press contact

Christian Klinkenberg, Sonamont (Belgium):

Sonamont press e-mail address (shown as an image)