Rosegarden
Rosegarden supports recording, editing, composition, synthesis, or mixing for game music, dialogue, ambience, and interactive sound.
Why use it
Audio teams can use it to take themes from notation through MIDI orchestration and audio export.
Where it fits
Use art, animation, audio, levels, and narrative to make the game easy to read and its world convincing.
What to check
It is Linux-focused, and external synths and JACK require additional integration; Plug-ins, samples, voice models, and bundled content may have separate licenses; final loudness and loops need in-engine validation.