WildMIDI 0.4.6

WildMIDI is a simple software midi player which has a core softsynth library that can be used in other applications. The WildMIDI library uses Gravis Ultrasound patch files to convert MIDI files into audio which is then passed back to the calling application. The library API is designed so that it is easy to include WildMIDI into applications that wish to include MIDI file playback.

Geonkick 3.4.0

Geonkick is a free software synthesizer capable of generating a wide range of percussive sounds, including kicks, snares, claps, hi-hats, shakers, and also unique effect sounds. LV2, VST3, Standalone 16 Instruments, 16 MIDI Keys 16 Stereo Channels 3 Layers/Instrument, 3 Oscillators/Layer Play, modify & blend samples with synthesis Save (JSON) & Export (FLAC, WAV, Ogg, SFZ)

Surge 1.3.1

A sound designer's dream. A friendly, open community. Featuring many synthesis techniques, a great selection of filters, a flexible modulation engine, a smorgasbord of effects, and modern features like MPE and microtuning.

sfizz 1.2.3

sfizz is a sample-based musical synthesizer. It features the well-established SFZ instrument format at its core, which permits to use existing instrument libraries, or create personal instruments with ease. Not only is sfizz ready-to-use as an instrument plugin of its own, the library allows developers to create instruments of their own, taking advantage of the abilities of SFZ.

Yoshimi 2.3.1.3

A software synthesizer for Linux, originally forked from ZynAddSubFX (Copyright 2002-2009 Nasca Octavian Paul) in 2009 by Alan Calvert. Initially, Yoshimi delivered the same synthesizer capabilities. After early improvement of Jack and Alsa midi/audio performance, now many new features have been added, and we are concentrating on accessibility.

ZynAddSubFX 3.0.6

ZynAddSubFX is a fully featured open source software synthesizer capable of making a countless number of instruments, from some common heard from expensive hardware to interesting sounds that you'll boost to an amazing universe of sounds.