I thought, rather than bog down the technique thread with the aesthetic/philosophic discussion around indeterminacy, chance, randomness, algorithmic, generative, ettttttc. I'd make a new thread. Other thread here: https://club.tidalcycles.org/t/week-4-lesson-2-random-marathon-rand-irand-mininotation-randomness-scramble-shuffle-choose-more/685/6
So I use a lot of indeterminate procedures, algorithmic procedures, and various other things like it in my musical practice more broadly, and as I said in the thread, I think this is an utterly important thing to do more generally in music, otherwise one just falls back on one's own knowledge, patterns, experiences, etc. and can't get to anything new (to the maker) and thus expand their knowledge, experience, and so on. I suppose I am on the more Cagean end of leaving lots of things up to chance, but scaffolding the chance operations themselves. Even within Cage's music though, the systems used always reigned in the randomness, which I think is what you're getting at, @yaxu? Rather than, say, infinitely generative music that lacks scaffolding?
An example of indeterminacy in my work is a piece I wrote for baroque violin called silver as catalyst in organic reactions, which took the spectral (chemical) analysis of molecular weight of silver bonded with carbon, synthesised that as sound, then spectrally analysed the sound as the raw musical material. This lead to a process where I had to shape the material and turn it into music, but still.
This is closer to the spectral work of say, Grisey and Murail, and the stochastic processes of Xenakis, and in a looser sense the integral serial/formula work of Stockhausen, but anyhoo.
Why I bring this up at all is just because there is no way I could have composed that piece by myself, without the aid of a computer and a range of random/probabilistic/indeterminate processes. So for me, one of the crucial parts about computer music more generally is the human-computer interaction, and the computer being an aid in composition.
Ok, ramble over. Would love this discussion to go on, selfishly, 'cause it's one of my fav things to discuss!