PLAINSOUND HARMONIC SPACE CALCULATOR

USER GUIDE | GitHub
dark theme
decimal places

REFERENCE PITCH
notation & frequency of 1/1


octave (Middle C = C4)

12edo diatonic note

12edo accidental


1/1 frequency (Hz)



tuning meter setting


1/1 = 0 cents
tuning meter A4 frequency = 0 cents

tuning meter A4 frequency



INPUT 1
HEJI notation


octave

Pythagorean diatonic note

HEJI accidentals

u5
u7
u11 11°
13° u13
17° u17
u19 19°
u23 23°
u29 29°
31° u31
u37 37°
u41 41°
u43 43°
47° u47

INPUT 2
JI ratio (input × offset)


offset ratio


 
input ratio


 


OUTPUT
normalise


HEJI notation

ratio
tuning meter
frequency
cents from reference
0

software pitch bends

from nearest MIDI pitch

Sibelius pb range ± cents
command
~B 0,64
Finale pb range ± cents
value
Musescore “tuning” ± 200 cents
cent value

MELODIC DISTANCE
from ratio I to ratio II


ratio I


 
ratio II


 

melodic ratio
1 : 1

melodic step in cents
0.00
frequency difference
0.000000

SCALE BUILDER
Scala file format


filename



short description



 

current # of pitches
1


remove pitch from scale



download file

Note:
1/1 is implicit in the Scala file format;
input pitches are automatically normalised
and sorted, thus scales are octave-repeating.