**Dozenal Conventional Music Notation DCMN**

Dear reader,

We will present this letter under the category Music Notation on the website of http://www.dozenalsociety.org.uk/ and on the forum of http://www.musicnotation.org with the request to the governing body of that organisation to move this **new type of dozenal notation** see Annex-1

from the wiki section to the 7-5 Pitch pattern section. There are more then 100 other graphic solutions possible for this type of notation than the one proposed by me.

Several members of the community know that I am advocating for some years now as well as others that Western music can be best represented by the duodecimal number system and a proposal was made to change the nomenclature in such a way that twelve single digits are used for each semitone eg as I have done it in Hamburg Music Notation. Together with Arpegemusic we developed the software Pizzicato Alternative Notation that corresponds to the pictorial representation of Numbered Notation (Jianpu) , which is commonly used in Asia where almost all beginners learn this method.

I myself even could read this notation only at limited speed despite intensive efforts.

Now I developed in October 2015 the **Dozenal Conventional Music Notation (DCMN)** for which I have applied the following other names Hamburg Music Pianotype Notation (HMPN) or Hamburg Music Emoji Notation (HMEN) as well but prefer the one highlighted in bold. This notation uses single dozenal digits as note names and a 7- 5 pitch pattern (Pianotype Notation) that closely resembles conventional notation but each tone is placed in such a manner on four lines that it has its own picture and therefore could be called Emojitype Notation (HMEN).

It is easy to learn, write and read, preserves the conventional diatonic structure and enriches it by opening it to dozenal mathematics. I try to get people interested from the educational and scientific field and try to raise funds to have my hypothesis tested.

It will be presented in detail on my website **www.hamburgmusicnotation.com** with examples. It uses five lines as in conventional music notation but places the noteheads in a way that eliminates the need for additional clef. The method requires three ledger lines between 5-line systems and enables easy depiction of all audible sounds as continuous system.

The use of two different forms of note heads within an octave allows like the piano, the realization of all scales. The use of accidentals is unnecessary.

The proposed notation can be represented with almost any currently in-use music software. Unfortunately, however, not the correct MIDI is played. A few other changes are necessary in order to achieve a correct image of music. The input of musicnotation of this type into existing software is currently very cumbersome.

Therefore Harry Schreiber and myself created a specification open to all programmers, who want to implement it, to facilitate this task.

**Specification to integrate ****Dozenal Conventional Music Notation (DCMN) **into existing software

We place it under the

Creative Commons Attribution-Share Alike 3.0 License 3.0

That is free for any noncommercial use.

Commercial use has to obey copyright laws and requires our express permission.

Sincerely

Christian Pörksen alias Robert Elisabeth Key