Helio Project

libre music composition software

For Windows:
portable 32-bit portable 64-bit installer


Helio is an attempt to rethink a music sequencer to create a tool that feels right. It provides a lightweight UI to help you get into the zone and focus on your ideas.
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Clear over clever

Visualize music in a way that doesn't seem so smoke and mirrors. The app may serve as a learning tool you need to grow as a composer.

Cross-platform tech

Available for all major platforms, desktop and mobile. Hosts VST and AudioUnit, runs on CoreAudio, ASIO, DirectSound, ALSA, JACK and OpenSLES. Exports to MIDI, WAV and FLAC.
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Follow the documentation to get started; learn about hotkeys, refactoring options, microtonal temperaments, and more.