Swami - Sampled Waveforms And Musical Instruments - is an advanced instrument editor for MIDI music composition and a software synthesizer frontend. Currently SoundFont® files can be browsed, edited and saved and new instrument formats are being added (D
RasmusDSP is an embeddable Audio/MIDI processor. It contains various filters and generators (including SoundFont 2.0 compatible synthesizer). Has a script interpreter which is used to describe instruments, route Audio/MIDI signal between processor units.
FluidSynth is a real-time software synthesizer based on the SoundFont 2 specifications. FluidSynth can read MIDI events from a MIDI input device and render them to an audio device using SoundFont instruments. SoundFont files are composed of digital audio