I chanced upon "Punkte - for orchestra" by Stockhausen and was reminded of one of the other threads where the conversation was about how traditional orchestral sounds were the old relic and limited texturally, and how electronic instruments offered unlimited textures and wider palette.
So far in my life I am yet to hear any "electronic composer" even coming close to these seemingly infinite variety of sound textures that Stockhausen creates in this piece, all entirely using acoustic instruments, and vividly holding your interest for 26 minutes! Just mind boggling.
Imagination is more important than tools I guess.
Enjoy
Anand