Came acros this nifty paper which is mostly jargon to me but inspires the creative coding mind 
Seems closesly relevant to something like audiotransport~. It would be cool to be able to compute distances between buffers of data using the OT metric I think. I have used cosine/euclidian distance in attempts to evaluate how far apart spectral bases are with nmf and more ways of investigating this kind of thing could be useful in decomposition and for whizzing around ones corpus by similarity.
also code!