Seed - the original idea. There's just one of these per project. The project may deviate from its point of conception significantly over time, but the seed should remain untouched(largely), once it's created.
Trunk - development of the core idea, expansion of the concept and theme.
Branch - developmentof a particular idea within the project, an individual song, photo or story.
Root - source material, inspiration, reference background.
Breeze - reflections on the project and the work.
Leaf - creative output, but scraps, interim statements rather than finished pieces.
Fruit - a completed song, photo or story.