The chart 'JI Player's Guide' represents a set of 40 notes
in an octave with low ratios and therefore
are primary choices for playing in Just Intonation (Pure Intonation).
The color coding adds a level of familiarity of pitch ranges
by relating to Western 12 Tone Equal Temperament.
For a high resolution image (opens in a new tab):
JI Player's Guide.png
The chart 'JI Player's Guide 21' represents a set of 71 notes
in an octave with ratios up to 21 and therefore
are primary choices for playing in Just Intonation (Pure Intonation).
The color coding adds a level of familiarity of pitch ranges
by relating to Western 12 Tone Equal Temperament.
For a high resolution image (opens in a new tab):
Players Guide 21.png