Yoshimi – MIDI software synthesizer

Yoshimi is a sophisticated, algorithmic MIDI software synthesizer for Linux, a fork of ZynAddSubFX.

It synthesizes in real time, can run polyphonic or monophonic, with multiple simultaneous patches on one or more MIDI channels, and has broad microtonal capability. It includes extensive additive, subtractive, and pad synth capabilities which can be run simultaneously within the same patch. It also has eight audio effects modules.

The software is released under an open source license.

Features include:

  • Graphical user interface and command-line access. The command-line interface can access all top level controls, as well as the part editing controls, and can select any effect and effect preset.
  • Contains three separate synthesis engines, AddSynth, SubSynth, and PADSynth; any single patch can use one or all. Furthermore there is a kit mode where the patch can have up to 16 of these engine sets for making multi-layered sounds or drum kits.
  • Combines several different methods of audio synthesis in order to create sounds: additive synthesis by the ADDsynth engine, subtractive synthesis by the SUBsynth engine, and an algorithm original to Nasca Octavian Paul used to generate wavetables in the PADsynth engine.
  • Supplied with 710 instruments spread across 23 banks.
  • Two-dimensional simultaneous FX control.
  • Supports MIDI Learn.
  • Can run as an LV2 plugin with:
    • Sample-accurate MIDI timing.
    • State save/restore support via LV2 State Interface.
    • Working UI support via LV2 External UI Widget.
    • Programs interface support via LV2 Programs Interface.
    • Multi-channel audio output. ’outl’ and ’outr’ have lv2 index 2 and 3. All individual ports numbers start at 4.
  • MIDI CC – implements CC 2, Breath Control. The software implements the “legato footswitch control”.
  • Vectors.
  • Bank Support.
  • JACK/ALSA MIDI and audio interfaces.

Support: Mailing List, GitHub Code Repository
Developer: Will J. Godfrey, Jeremy Jongpier, Alan Calvert, Mark McCurry, Harald Hvaal, Nasca Octavian Paul
License: GNU General Public License v2.0



Yoshimi is written in C++. Learn C++ with our recommended free books and free tutorials.

Return to Synthesizers

Popular series
Free and Open Source SoftwareThe largest compilation of the best free and open source software in the universe. Each article is supplied with a legendary ratings chart helping you to make informed decisions.
ReviewsHundreds of in-depth reviews offering our unbiased and expert opinion on software. We offer helpful and impartial information.
Alternatives to Proprietary SoftwareReplace proprietary software with open source alternatives: Google, Microsoft, Apple, Adobe, IBM, Autodesk, Oracle, Atlassian, Corel, Cisco, Intuit, and SAS.
GamesAwesome Free Linux Games Tools showcases a series of tools that making gaming on Linux a more pleasurable experience. This is a new series.
Artificial intelligence iconMachine Learning explores practical applications of machine learning and deep learning from a Linux perspective. We've written reviews of more than 40 self-hosted apps. All are free and open source.
Guide to LinuxNew to Linux? Read our Linux for Starters series. We start right at the basics and teach you everything you need to know to get started with Linux.
Alternatives to popular CLI tools showcases essential tools that are modern replacements for core Linux utilities.
System ToolsEssential Linux system tools focuses on small, indispensable utilities, useful for system administrators as well as regular users.
ProductivityLinux utilities to maximise your productivity. Small, indispensable tools, useful for anyone running a Linux machine.
AudioSurveys popular streaming services from a Linux perspective: Amazon Music Unlimited, Myuzi, Spotify, Deezer, Tidal.
Saving Money with LinuxSaving Money with Linux looks at how you can reduce your energy bills running Linux.
Home ComputersHome computers became commonplace in the 1980s. Emulate home computers including the Commodore 64, Amiga, Atari ST, ZX81, Amstrad CPC, and ZX Spectrum.
Now and ThenNow and Then examines how promising open source software fared over the years. It can be a bumpy ride.
Linux at HomeLinux at Home looks at a range of home activities where Linux can play its part, making the most of our time at home, keeping active and engaged.
Linux CandyLinux Candy reveals the lighter side of Linux. Have some fun and escape from the daily drudgery.
DockerGetting Started with Docker helps you master Docker, a set of platform as a service products that delivers software in packages called containers.
Android AppsBest Free Android Apps. We showcase free Android apps that are definitely worth downloading. There's a strict eligibility criteria for inclusion in this series.
Programming BooksThese best free books accelerate your learning of every programming language. Learn a new language today!
Programming TutorialsThese free tutorials offer the perfect tonic to our free programming books series.
Linux Around The WorldLinux Around The World showcases usergroups that are relevant to Linux enthusiasts. Great ways to meet up with fellow enthusiasts.
Stars and StripesStars and Stripes is an occasional series looking at the impact of Linux in the USA.
Notify of

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Inline Feedbacks
View all comments