For a fancy visual presentations of the **Plain Music Notation** (PMN) system, please, visit this page: **Plain Music Notation (PMN) system**

The idea is plain and simple. In 12-TET there are 12 tones that have their names as follows:

**Bo**, **Da**, **Le**, **Gu**, **Ro**, **Ma**, **Ne**, **Pu**, **Fo**, **Sa**, **Te**, **Vu**

The tones are designated according to the first consonant letter of their corresponding names:

**B**, **D**, **L**, **G**, **R**, **M**, **N**, **P**, **F**, **S**, **T**, **V**

The vowels: **O**, **A**, **E**, **U** have been used as they are the most common and easy to get sung in vocal exercises.

The intervals in the Plain Notation System are also straightforward as follows:

- zero interval means – unison
- the smallest interval – first
*(prime)* - second
- third
- fourth
- fifth
- sixth
- seventh
- octave
*(eight)* - ninth
- tenth
- eleventh
- renova
*(anew, again)* - refirst
- resecond
- rethird
- … and so on

The inversions of the intervals obey the formula: Ia + a = 12 *(Ia is the inversion of a)*

An interval and its inversion sum up to 12, because 12 is the number of the notes we have in 12-TET (so called European and Western music).

Mapping of the noteletters and noteheads on a “standard” layout of a piano keyboard:

A small comparison between the conventional notation system and PMN:

*notice the amount of saved space and the improved clarity of PMN in contrast to the standard music notation

For videos about Pashkuli products, please see also: Pashkuli Keyboard Instruments (YouTube channel)