I need help for this program

Question

I want to build an algorithm that generates random (music) scales based on the fact that we have 12 semitones and only 2 possible steps (semitone, wholetone).
I thought I should create a list with a variable number of indexes, the sum of them has to be 12 everytime and the only acceptable values are 1 and 2 (semitone, wholetone).
However I can't figure out how to translate this logic into java code, anyone can help?

Answer 1

I don't understand your logic:

1) Distances between successive notes can be any length
2) Why would the sum of indexes equal 12?

Answer 2

I'll explain myself better: Im not talking about generating a "solo" of notes, I'm talking about creating the structure of a scale, lets take the typical diatonic major scale structure (x=root note, T=whole step, t=half step):
x-T-T-t-T-T-T-t
now lets assign T as 2, and t as 1... is it clear now?
Another example: the Debussy scale, only composed by whole steps, that'd be:
2-2-2-2-2-2
This algorithm could supppsedly generate any diatonic or modal scale plus the artificial ones, like the Debussy's or the chromatic which is only made of half steps.

Answer 3

Right, that does make sense now! I'll look into this. Maybe someone else will beat me to it though.