I have a Java app that can output Midi and I want to
be able to access
softsynths on a Linux system. Is there already a project out there that does
such a thing? Would it be best to interface with Ladspa or Jack?
I am not sure because I have no direct experience on this specific
subject, but you probably want to interface with the ALSA Sequencer
library used by most Linux softsynths so you might need the Tritonus
implementation of the Java MIDI API:
http://www.jsresources.org/faq_tritonus.html
HTH,
Luis