How to input the number of different tropes
Since the trope structure consists of 6 trope numbers, there can be
at most 6 different trope numbers in the trope structure of a tone
row. As a matter of fact, for each i ∈ {1,…,6} there
exist tone rows with trope structures containing exactly i
different trope numbers.
Prescribe the number of different trope numbers which must occur
in the trope structure of a tone row. I.e. choose a number from 1
to 6.
Database on tone rows and tropes
harald.fripertinger "at" uni-graz.at
January 2, 2019