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ossia score 3.9.0

Sequencer for media artists

filecart Linux Updated Oct 16, 2026
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About ossia score

ossia score is a sequencer for audio-visual artists, designed to enable the creation of interactive shows, museum installations, intermedia digital artworks, interactive music and more in an intuitive user interface.

• Sequence OSC, MIDI, DMX, sound, video and more, between multiple software and hardware.

• Script and live-code with JavaScript, ISF Shaders, Faust, PureData or C++.

• Leverage IoT protocols such as CoAP or MQTT for industrial-grade automation.

• Interact with joysticks, Wiimotes, Leapmotions, Web APIs and BLE sensors.

• Integrate programs from a wealth of creative programming languages such as Structure Synth, Context-Free Art and Bytebeat.

• Load any kind of audio or video format and process visuals through Spout, Syphon, NDI, Shmdata or Sh4lt.

• Use VST3, LV2 audio plug-ins and more.

License: GPL-3.0
Release info Update on Oct 15, 2026
Release notes [](https://discord.gg/8Hzm4UduaS) [](https://opencollective.com/ossia) [](https://github.com/sponsors/jcelerier)

ossia score is a sequencer for audio-visual artists, designed to create interactive shows.

Sequence OSC, MIDI, DMX, sound, video and more, between multiple software and hardware. Create interactive and intermedia scores, script and live-code with JavaScript, ISF Shaders, Faust, PureData or C++. Leverage IoT protocols such as CoAP or MQTT, interact with joysticks, Wiimotes, Leapmotions, Web APIs and BLE sensors and integrate programs from a wealth of creative programming languages such as Structure Synth, Context-Free Art and Bytebeat. Load any kind of audio or video format and process visuals through Spout, Syphon, NDI, Shmdata or Sh4lt ; sonify large datasets with CSV and HDF5 support.

ossia score 3.9.0 is a large release: highlights are a complete 3D pipeline, new video capture, streaming and tracking devices, advances on custom user interfaces, a more customizable look, along with dozens of new protocols, synthesizers and objects.

Thanks to @edumeneses @bltzr @ogauthiersat @cbicari @samamou @darioriccio @thibaudk @aklevy for the major contributions!

Full Changelog: https://github.com/ossia/score/compare/v3.8.2...v3.9.0

This release has been mainly developed thanks to projects happening at the Société des Arts Technologiques. It is part of the Suite SAT.
This release has benefited from a load-bearing sponsorship from Anthropic, granting free access to a Claude Max 20x plan during its development.

New features
• 3d: a complete 3D scene pipeline, not based on Qt Quick 3D. An Asset Loader reads glTF/GLB, FBX, STL, OFF and MagicaVoxel .vox (alongside OBJ and PLY) with their lights, cameras, glTF animations and skins, and FBX node animation. Scene-graph processes filter, tag, group, switch, duplicate and transform a scene, with material overrides and everything driven from the device tree.
• 3d: new objects include Camera, Camera Array, Camera…
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