Rosegarden is a free software digital audio workstation program developed for Linux with ALSA and Qt4. Developed by Chris Cannam, Richard Bown, Guillaume Laurent, et al.
License: Open Source
Rosegarden is a powerful open-source music composition and notation software with a steeper learning curve and a focus on MIDI and traditional composition, while Caustic is a more user-friendly, portable app designed for real-time music creation and performance with a variety of built-in synths.