Soundtrack for video only

Right then.

I won't create a soundtrack for the whole dissertation or any of the major component parts.

Instead, I'll create a unique audio track for each of the videos that I propose to make. These currently consist of: 
1 defining multimodality; 
2. evolution of the university crest, and; 
3. a walk around the university.
4. conclusion video

Each of these videos will be short, therefore I'll be looking for short audio soundtracks.

I could still continue with the idea of the Eno-esque ambient background (for some at least - not sure if that would suit the 'crest' video) but this would be complemented by other (relevant) sound effects, audio or music. I would match the audio to what's on screen, rather than the 'music to read by' approach I was previously favouring (albeit uncertainly).

I'm not sure this will save time, however it will feel like I'll be creating a soundtrack with purpose, both in the sense that I will have a sense of purpose, and also in that the the soundtrack will serve a clear, rather than abstract, function.