ALCHEMY PUBLICATIONS AND MUSIC The interest in music among great minds in ancient times is well know. Pythagoras argued there was a mathematical and geometrical harmony in the cosmos (Musica Universalis or ‘Music of the Spheres’ – I briefly wrote...

ASTRO-MUSIC COMPOSITION (CHART TO MUSIC) Part 2 of the article "Astro-Music Composition". If you have not read the previous part, then I suggest you read Part 1 first. THE COSMIC EXPANSE The most ideal setup is to use the number...

ASTRO-MUSIC COMPOSITION (CHART TO MUSIC) Part 3 of the article "Astro-Music Composition". If you have not read the previous parts, then I suggest you read Part 1 & Part 2 first. IMPLEMENTATION: THE SOLAR SECTOR "As Above, So...

ASTRO-MUSIC COMPOSITION (CHART TO MUSIC) FOREWORD In response to many questions I received via e-mail  and Facebook  about my article "The Astrological Zodiac & Music Tonality - Tone Zodiac " about the implementation...

EARLY ELECTRONIC MUSIC Ever since I started composing music with computer software I have been interested in Electronic Music. In particular IDM (Intelligent Dance Music) and not EDM (Electronic Dance Music) , I have never been much of a "clubber"...

FAVORITE MUSIC QUOTES Some people think that by quoting someone their wisdom and genius would "rub off" on them. Quoting others is easy, anyone can do it. To share something does not mean you truly understand and live by what it represents....

JAZZ ALBUM "MUST-HAVES" Have you ever asked yourself the question: "What albums would I buy if I had to build-up my Jazz collection up from scratch?" Well, the albums in this blog would be the "must-haves " for me. Some of them rank high...

MUSIC & THE BRAIN A blog with quotes from various online articles about music and it's relationship to the functioning of the brain. The information placed in this blog are not the whole articles but the most essential passages. Below every abstract...

MUSIC COMPOSITION & MATH (NUMBERS/SEQUENCES) "May not music be described as the mathematics of the sense,  mathematics as music of the reason? The musician feels mathematics, the mathematician thinks music: music the dream, mathematics...

THE "AMEN BREAK" As composer and "beat creator" I have always been intrigued by grooves, vamps and licks. Some "patterns" stand out from the rest or play an important role in the development of music. The "Amen Break" is one of those "patterns"...

The Astrological Zodiac & Musical Tonality FOREWORD I am not an astrologer or astronomer  (I am but a musician-composer and sound engineer with a keen interest in this subject). This article is in the first place written for...

The Astrological Zodiac & Musical Tonality - Part 2 - A Historical Time-line Historical Tone Zodiac Variants: PTOLEMY | MARSILIO FICINO | RUDOLF STEINER | MAX HEINDEL | ANNY VON LANGE | SIGISMUND VON GLEICH | MARIUS SCHNEIDER | ALAIN...

The Astrological Zodiac & Musical Tonality - Part 3 - Aspects, Grouping, Modes & Degrees ASTROLOGICAL ASPECTS, SIGN-GROUPS, MODES AND DEGREES "Opposition ", "Trine " and "Square " are commonly used terms by astrologers to define important relative...

The Astrological Zodiac & Musical Tonality - part 4 - Works by Composers & Musicians Various composers and musicians have been inspired by the Zodiac signs. Note that not all of them listed below followed a concrete Tone-Zodiac. Some...

The Astrological Zodiac & Musical Tonality - Roel's Interpretation This article is an addition / continuation of the article 'The Astrological Zodiac & Musical Tonality - Tone Zodiac ' and contains my personal interpretation of the relationship...

THE ASTRONOMICAL (CONSTELLATIONAL) ZODIAC SCALE The "Astronomical Zodiac  Scale " (musical temperament ) is a creation by Roel Hollander. Feel free to use it for your musical compositions or quote from it for own work, but please, do...

THE FUNCTIONS OF THE INTERVALS (A PHILOSOPHICAL VIEW ON) "I interweave my earthly existence with the divine-spiritual world, and, on the wings of the tone structure, the gods move through the world. I participate in their moving when I perceive...

Classical music and Jazz … a perfect match! There are quite some musicians in both the Classical music and Jazz music scenes who frown when you mention you like both music genres, especially when you also mention you find them less different t...

Jazzrock, Jazz-Fusion and Smooth Jazz, what's the difference? Once in while a discussion takes place on social media where Jazz sub-genres are seemingly randomly interchanged, causing some confusion. Now, there are people who don't care about...

MUSIC & GEOMETRY - PART 2 - HARMONY Before we continue exploring geometric shapes of harmony first some additional information about tone circles and harmony ... Tone Circles are a very important tool when it comes to harmonic progression...

MUSIC & GEOMETRY - PART 1 - INTERVALS & SCALES In Western music theory there are 13 intervals from Tonic (unison) to Octave. These intervals are the: Unison , Minor Second , Major Second , Minor Third...

MUSIC & GEOMETRY - PART 3 - RHYTHM GEOMETRY OF RHYTHM So far in this article we have looked at the geometric relationships between tone (pitch) and geometric shapes (polygons and polygrams). Music though is more then tones alone....

MUSIC & GEOMETRY - PART 4 - VARIOUS In this part about music and geometry I like to share various related things. “COUNTING CORNERS” Another way to look at geometry and sound is angles (arc minutes) and the tones you...

Music and Esotericism Esotericism is a term scholars use to categorise a wide range of loosely related ideas and movements that developed within Western society. Esotericism is about (secret) knowledge for a small group of people (initiates)....

432-TUNING: INDEX The information in the blog articles contains mathematical, scientific and philosophical concepts, historical references and most important the practical implementation in relationship to music for listening and dancing,...

432HZ & TUNING … WHAT IS RELATED AND WHAT IS NOT? On many web sites and blogs about 432-Tuning various presumed relationships between musical tuning and the presence of number 432 in other fields are shared to validate 4...

432HZ OR 444Hz/528Hz… "SPECIAL" FREQUENCIES? In this article I will share my OPINION  about this matter. It is how I see it ... you may agree or you may disagree, or perhaps you have a completely different idea about it all. In c...

432Hz TUNING BASICS - INTRODUCTION When you browse the internet for information about “432 Tuning”, you come across various interpretations and rumors on this topic. But, is the argumentation used correct? If might be useful to rea...

CONCERT PITCH vs TUNING SYSTEM (A COMMON MISUNDERSTANDING) A common misunderstanding when it comes to 432-Tuning is that many people do not understand the difference between "concert pitch" and "tuning system". If you do not know the difference,...

HARMONICS / OVERTONES OF 432HZ VS 440HZ ⚠ RUMOR:  “432Hz TUNED MUSIC HAS MORE OVERTONES THEN 440Hz TUNED MUSIC.” There are several articles available online about overtones and Concert Pitch 432Hz vs 440Hz. Some of these articles sugge...

432HZ AS INTERNATIONAL CONCERT PITCH? ONLY IF … One aspect in the whole “432Hz tuning debate” is generally overlooked, but – in my opinion – of the utmost importance. If we want to implement a change in Concert Pitch - from 440Hz to 432Hz ...

MYTH ⚠ 432Hz WAS THE STANDARD BEFORE 440Hz (HISTORICALLY INCORRECT,  PSEUDOSCIENCE) Some online sources state that 440Hz replaced 432Hz as Standard. That is incorrect . 432Hz has NEVER  been a National or International s...

432 & CYMATICS Cymatics is the study of visible sound and vibration. Typically the surface of a plate, diaphragm, or membrane is vibrated, and regions of maximum and minimum displacement are made visible in a thin coating of...

432Hz & THE SCHUMANN RESONANCE ⚠ AN IMPRACTICABLE "CIRCUMSTANTIAL" THEORY On various sites that provide information about 432-tuning (Concert Pitch A4=432Hz  or C4=256Hz  + Pythagorean Temperament )...

GIUSEPPE VERDI … 435Hz, 432Hz, 256Hz One of the more often expressed reasons why Giuseppe Verdi is seen as "432-composer" is because Verdi is said to have supported the "Scientific" or "Philosophic" Pitch concept (C4=256Hz ).  ...

MYTH ⚠ 432Hz & THE SPEED OF LIGHT “432 IS THE SQUARE ROOT (√) OF THE “SPEED OF LIGHT”. (PSEUDOSCIENCE ) Some people like to suggest that 432Hz is the most natural concert pitch due to a presumed relation to the speed of light:...

⚠ MYTH: MOZART, JIMI HENDRIX, BOB MARLEY, PRINCE … 432-ARTISTS? From time to time stories about various known artist and composers such as Bach, Mozart, Verdi, and more recent Bob Marley, Jimi Hendrix and others pop up, with cla...

432HZ: DAWs, VIRTUAL INSTRUMENTS, PLUGINS, SOFTWARE TOOLS In this blog article I will place various information about 432Hz virtual (software) instruments, plugins, packages and more, for various DAWs, as well as useful software tools. SCALA...

HOW TO: CHANGING THE CONCERT PITCH (POST PROD.) A blog about using software and/or plugins to change the Concert Pitch. There are various applications (sound/wave editors) and plugins that can be used for changing the Concert Pitch. I am...

HOW TO: CHANGING THE CONCERT PITCH + TEMPERAMENT (POST PROD.) USING SOFTWARE TO CORRECT TEMPERAMENT Antares Auto-tune  / Melodyne Editor  / Waves Tune When you have the separate instrument tracks of a song, then...

432HZ MUSICAL INSTRUMENTS At present time there are only a relatively small number of instruments specially designed for Concert Pitch 432Hz. In this article I will share little bits of info and links about them. ! IMPORTANT NOTE :...

432HZ SAXOPHONE REDESIGN LOBBY I started this 432Hz Saxophone Redesign Lobby in December 2011, without much success. All companies I wrote e-mails and letters to did not seem to be interested. But In December 2014 - 3 years later - the 432Hz...

BORGANI 432 SAX "We are very proud for our first Tenor Sax with pitch 432 ! " - Borgani USA Photo: Enrico Marchioro with his brand new Borgani Tenor Sax Special Edition made on request with pitch 432 .  I received a...

Browsers Pitch Add-Ons / Extensions. Something I had not written about on Roel's World are Add-Ons / Extensions to pitch HTML5 and non-HTML5 audio and video via a web browser. Streaming music online (Spotify, Youtube, Apple Music, Tidal,...

EVO 432 MUSIC SERVER An acquaintance of mine is involved in the development and production of the music server "EVO 432 ". This device might be the answer for some of you 432-enthusiasts (as well as for some radio shows) with large (440Hz)...

REAL-TIME 432 AUTO-PITCHING MUSIC PLAYERS (For: Windows , Mac OS X , Linux , iPhone , Android )  GENERAL INFORMATION: For all who have some difficulties working with sound editors, maybe a music player with real-time pitch...

WATCHING VIDEOS (AND AUDIO) REAL-TIME PITCHED-DOWN TO A4=432HZ One of the questions that I receive from visiters of my blog is about videos and if there is a way to watch/listen to the videos pitched-down to 432Hz. The short answer to this...

Precise Temperament Tuning for 432 Hz (and 528 HZ) In recent years Robert E Grant explored and shared the direct relationships between mathematics, geometry, cosmology and music, something I have been blogging about as well on Roel's...

FIBONACCI 432Hz TEMPERAMENT This is the 432Hz related abstract of the blog article "Fibonacci & Tuning ". For more information and alternative temperaments do read the full article ! 8-FIBONACCI (TEMPERAMENT) Ratios made...

"MOST HARMONIC NUMBERS" (MHN) CONCEPT, (BETTER KNOWN AS THE PYTHAGOREAN TUNING) The list of frequencies in this article form the Pythagorean Tuning (or 3-limit Just Intonation) - more about that later in the article - and has also been shared...

RENOLD-I TEMPERAMENT ("THE SCALE OF FIFTHS") I came across the "Twelve True-Fifths Tuning " concept (by Maria Renold ) through a facebook friend, Brain T. Collins , who mentioned this tuning concept on his web site, the Omega432.com . Brian...

RENOLD-II TEMPERAMENT ("THE SCALE OF FIFTHS") (by Maria Renold, revised by Peter Stevens & Paul Davis) In an earlier article on this blog I have written about and explained the "Renold-I" temperament , the first version...

432 & THE "FACTOR 9" The Factor 9 concept is mentioned in the video called "Sonic Geometry: The Language of Frequency and Form " (by Eric Rankin and Alanna Luna ). In this article we will take a closer look at the Factor 9 "formula",...

MUSIC & GEOMETRY (The Sacred Geometry Of Music) "Geometry is knowledge that appears to be produced by human beings, yet whose meaning is totally independent of them."– Rudolf Steiner A note to start this article with: Perfect g...

Music Composition as Alchemical Process Alchemy involves the manipulation of energy to transform physical and spiritual matter. Music has the power to transform the listener’s emotions, in a similar manner transform one's mindset when used for m...

‘Musica Universalis’ (Music of the Spheres) Musica Universalis   (literally universal music ), also called ‘Music of the Spheres’ or ‘Harmony of the Spheres’ is an ancient Greek philosophical concept that regarded proportions in the move...