FluidSynth is a real-time software synthesizer based on the SoundFont 2 specifications and has reached widespread distribution. FluidSynth itself does not have a graphical user interface, but due to its powerful API several applications utilize it and it has even found its way onto embedded systems and is used in some mobile apps.
Cross platform support (Linux, macOS and Windows to name a few)
SoundFont 2 support
SoundFont 3 support (vorbis-compressed SF2)
Realtime effect control using SoundFont 2.01 modulators
Playback of MIDI files
Shared library which can be used in other programs
Built in command line shell
2.0.729 Sep 2019 03:15
Broken audio output when reverb was active after synth creation.
Deconsole messages not being visible for debuilds on Windows.
2.0.625 Sep 2019 21:39
fix an uninitialized memory access, which could have led to NULL dereference or heap corruption in an out-of-memory situation
fix a use-after-free when calling fluid_player_stop()
fix the MIDI player not outputting any sound after stopping and restarting the playback (#550)