FluidSynth is a software real-time synthesizer based on the Soundfont 2 
specifications. FluidSynth reads and handles MIDI events from the MIDI 
input device. It is the software analogue of a MIDI synthesizer. 
FluidSynth can also play midifiles using a Soundfont.

If you want support for ladspa plugins you have to pass LADSPA=yes to 
the script - this requires ladspa_sdk to build.

Optional deps are libsndfile, lash, portaudio, and jack-audio-connection-kit.