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, LSL-compatible devices 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 and process 3D geometry entirely on the GPU.
Free, open source and runs on desktop, mobile, web and embedded, down to Raspberry Pi Zero 2.
Read more on https://ossia.io, come ask questions on the forum or hang out in our Discord or Matrix room #ossia_score:gitter.im, we will be happy to help you !
Quick download links: latest official release / bleeding edge
Releases are available for Windows, Linux (via AppImage) and macOS.
- Windows: install and run.
- macOS: open the
.dmgand dropossia score.appin Applications. - Linux: make executable (right click -> permissions or
chmod +x) and run the AppImage.
| Platform | Status |
|---|---|
| AppImage (x86-64 & AArch64) |  |
| Flatpak (x86-64 & AArch64) |  |
| Nix |  |
| ArchLinux, SUSE, Fedora |  |
| Debian (Bookworm, Trixie) |  |
| Ubuntu (22.04, 24.04, 24.10) |  |
| macOS (M1 & Intel) |  |
| Windows (MSYS2, MSVC 2026) |  |
| FreeBSD |  |
| WebAssembly |  |
| Plug-in templates |  |
ossia score uses CppDepend to ensure consistent code quality improvements ; please check it out !
In order to build score, follow the documentation.
When updating the score repository through the command line, don't forget to update the submodules, they change often.
cd score
git pull
git submodule update --init --recursive