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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.

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

ossia score screenshot

Running ossia score

Releases are available for Windows, Linux (via AppImage) and macOS.

Windows: install and run.
macOS: open the .dmg and drop ossia score.app in Applications.
Linux: make executable (right click -> permissions or chmod +x) and run the AppImage.

Build status

Platform	Status
Official releases
ArchLinux, SUSE, Fedora
macOS (Homebrew (M1 & Intel))
Windows (MSYS2, MSVC 2022)
Debian (Bookworm, Trixie)
Ubuntu (22.04, 23.04, 24.04)
Raspberry Pi (Bookworm AArch64)
Flatpak
Nix
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.

Packaging status

Contributing

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

Some useful and easy potential contributions are listed on the website.

There are also many fixable areas in the code :

TODO : for simple issues.
FIXME : for critical bugs / problems.
MOVEME : when something is not where it should be.
REMOVEME : when something is redundant.
RENAMEME : when the class does not match with the file it's in.
OPTIMIZEME : when an easy-to-write-but-suboptimal algorithm is used.

Finally, one can write its own score plug-ins to add custom features to the software. An example plug-in with the most common classes reimplemented is provided here.

Contributors

Code Contributors

This project exists thanks to all the people who contribute. [Contribute]. <a href="https://github.com/ossia/score/graphs/contributors"><img src="https://opencollective.com/ossia/contributors.svg?width=890&button=false" /></a>

Financial Contributors

Become a financial contributor and help us sustain our community. [Contribute]

Individuals

Organizations

Support this project with your organization. Your logo will show up here with a link to your website. [Contribute]