Uses Rahn's algorithm to calculate the best normal order for the
transposition class represented by a given set. Reflects transpositional
but not inversional equivalence, i.e. all major triads return (0, 4, 7) and
all minor triads return (0, 3, 7).
Usage
tnprime(set, edo = 12, rounder = 10)
Arguments
- set
Numeric vector of pitch-classes in the set
- edo
Number of unit steps in an octave. Defaults to 12.
- rounder
Numeric (expected integer), defaults to 10:
number of decimal places to round to when testing for equality.
Value
Numeric vector of same length as set representing the set's
Tn-prime form
Examples
tnprime(c(2, 6, 9))
#> [1] 0 4 7
tnprime(c(0, 3, 6, 9, 14), edo=16)
#> [1] 0 2 5 8 11