3JCN - The Simplest Music Notation

Note is used to represent the relative

octave position, name, and duration.

(Pitch represents the perceived fundamental

(Duration: A tone may be sustained for varying lengths of time)

There are total 128 notes for all music instruments (Standard MIDI notes as picture below).

Two notes with fundamental frequencies in a ratio of any power of two (e.g. half, twice, or four times) are perceived as very similar. Because of that, all notes with these kinds of relations can be grouped under the same pitch class.

1.

There are plus notes and minus notes: a+ = -b c+ = -d d+ = -e f+ = -g g+ = -a

(read

2.

For Time Signature with denominator 4 (such as 1/4; 2/4; 3/4; 4/4; 5/4; ...), then 1 unit = 1 beat.

For Time Signature with denominator 2 (such as 1/2; 2/2; 3/2; ...), then 2 unit = 1 beat.

For Time Signature with denominator 8 (such as 1/8; 2/8; 3/8; 4/8; 5/8; 6/8; ...), then 1.5 unit = 1 beat.

Examples: a2 --- > note La (A) with duration 2 (1 beat in time signature 2/2, 2 beats in TS 3/4,...)

d3 ----> note Re (D) with duration 3 (3 beats in time signature: 2/4, 2 beats in TS 6/8, ...)

c1.5 ---- > note Do (C) with duration 1.5 (1.5 beats in time signature: 3/4; 1 beat in TS 3/8, ...)

3. __Note's Position:__ How to differentiate note Do in 3rd octave and note Do in 5th octave?

It is very simple: We add a number in front or on the superscript of a note to show which octave the note belongs to.

For examples: 3c2 = note Do in 3rd octave (C3) with duration 2.

5c2 = note Do in 5th octave(C5) with duration 2.

2d1 = note Re in 2nd octave (C2) with duration 1.

9a3 = note La in 4th octave (C9) with duration 3

__WHY 6th IS THE MIDDLE OCTAVE?__

There are 128 notes in MIDI range. Each octave contains 12 notes (C, +C, D, +D, E, F, +F, G, +G, A, +A, and B) except the last octave (10th) has only 8 notes [C, +C, D, +D, E, F, +F, G].

Therefore, there are 11 octaves (1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11). It makes sense to choose middle octave is 6th octave.

By default, it's not necessary to write number 6 in front of middle octave note. (for example: "c2" stands for middle C with duration 2 beats). Because notes in the middle octave are used a lot by musicians, we do not need to write number 6 in the front of or on the superscript of these notes to save space (make the song simpler).

It's highly recommended that we should use subscript and superscript to write 3JCN song to have a compact song as the following:

It is very simple: We add a number in front or on the superscript of a note to show which octave the note belongs to.

For examples: 3c2 = note Do in 3rd octave (C3) with duration 2.

5c2 = note Do in 5th octave(C5) with duration 2.

2d1 = note Re in 2nd octave (C2) with duration 1.

9a3 = note La in 4th octave (C9) with duration 3

There are 128 notes in MIDI range. Each octave contains 12 notes (C, +C, D, +D, E, F, +F, G, +G, A, +A, and B) except the last octave (10th) has only 8 notes [C, +C, D, +D, E, F, +F, G].

Therefore, there are 11 octaves (1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11). It makes sense to choose middle octave is 6th octave.

By default, it's not necessary to write number 6 in front of middle octave note. (for example: "c2" stands for middle C with duration 2 beats). Because notes in the middle octave are used a lot by musicians, we do not need to write number 6 in the front of or on the superscript of these notes to save space (make the song simpler).

It's highly recommended that we should use subscript and superscript to write 3JCN song to have a compact song as the following:

Every music instrument has its own range of octaves. Look at the bottom of picture below, you will see the standard 3JCN music range from octave 1 to octave 11.

Note C, which starts 6th octave, is called middle C (MIDI order number of middle C is #60).

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