HighC, Xenakis UPIC inspired composition tool

[shamburglar]

http://highc.org/index.html

I'm loving this program... I've never used a UPIC before but I'm sure this does a lot more. There is nothing out there like this!

[Méka]

Don't forget MetaSynth (http://uisoftware.com/MetaSynth/)
It's a kind of "big brother" of HighC, a very powerful tool, indeed.
But, yes, HighC is a good and cheaper alternative to MetaSynth .... I love this program too .... Very strange sounds can be generated by this method.