Ingen

Ingen (formerly Om) is a modular audio processing system for GNU/Linux audio systems using the Jack audio server and LV2 or LADSPA plugins.

http://drobilla.net/software/ingen/
http://dev.drobilla.net/wiki/Ingen

"Ingen is still in early stages of development, still in svn and without a stable release posted, so there will not be any documentation for it really. I've only been messing with it for a couple of weeks now, but it definitely seems easier to figure out than Pd. I don't think you can expect to do anything really productive in Pd straight away, but there is a lot more documentation (and a visibly bigger community) out there for Pd than for Ingen. I think I found this little guide fairly useful." - Tim-43, January 2009.

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