This is not that same as music in the sense that this post is about audio creation.
For some of my work I use CC licensed (Creative Commons) audio meaning audio can be manipulated into new audio or used as royalty free tracks with an artist notation; depending on the license. Some audio I have done has been made up of my voice or free CC licensed sound clips (or in combination). I use mostly GarageBand, sometimes Audacity (mainly for class projects) to manipulate sound into either audio stories or soundtracks.
The only example left online is the sound from my animation from the last post. The sound track was created from 5 sound clips and constructed in Audacity.