Just intonation point: Difference between revisions

Add back math guide link
Tags: Reverted Visual edit
+ "just tuning map" cuz it's linked
 
(One intermediate revision by the same user not shown)
Line 1: Line 1:
The '''just intonation point''' ('''JIP''') is a special [[tuning map]] that maps every [[monzo]] in some [[subgroup]] to its [[span]] in [[cent]]s (or any other logarithmic [[interval size unit]]), relative to the point 1/1 (which maps to 0 cents).  
The '''just intonation point''' ('''JIP'''), also known as '''just tuning map''', is a special [[tuning map]] that maps every [[monzo]] in some [[subgroup]] to its [[span]] in [[cent]]s (or any other logarithmic [[interval size unit]]), relative to the point 1/1 (which maps to 0 cents).  


For instance, in 5-limit JI, the JIP is {{val | 1200.000 1901.955 2786.314 }}; if we [[Mathematical guide/Matrix operations#Dot product|take]] the {{w|dot product}} of this tuning map with any monzo, we get its size in cents. Of course, one can always build the JIP using different units than cents.
For instance, in 5-limit JI, the JIP is {{val | 1200.000 1901.955 2786.314 }}; if we take the {{w|dot product}} of this tuning map with any monzo, we get its size in cents. Of course, one can always build the JIP using different units than cents.


For prime limits, the JIP has a particularly simple definition in Tenney-weighted coordinates, where it is always the all-ones vector, {{val | 1 1 1 … }}.
For prime limits, the JIP has a particularly simple definition in Tenney-weighted coordinates, where it is always the all-ones vector, {{val | 1 1 1 … }}.