Radium is a music editor inspired by classic tracker interfaces, enhanced by the capabilities of modern computers. It functions as a comprehensive digital audio workstation (DAW) and MIDI sequencer, offering a streamlined environment for music creation and editing. Radium supports both audio and MIDI multitracking, enabling detailed automation of pitch, velocity, effects, and tempo with smooth scrolling for an intuitive user experience.

This software provides advanced MIDI sequencing and multitrack hard disk recording, allowing precise synchronization with other audio applications. Users can take advantage of an optional piano roll, modulators such as LFO and envelope followers, as well as MIDI learn capabilities to customize their workflow. Its modular mixer and mixer strips offer flexible mixing options with global and per-track swing settings, while compatibility with AU, LADSPA, VST2, and VST3 plugins expands its sonic palette significantly.

Radium comes equipped with numerous built-in effects and virtual instruments, and includes over 100 LADSPA plugins. It features an embedded Pure Data environment for Linux users and an integrated Faust development environment for creating custom audio processes. The software supports graphical zoom, non-destructive editing of lines per beat, microtonality, and extension languages like Python and Scheme, making it a powerful tool for musicians and sound designers seeking both precision and flexibility.