Ed, I had access to the tracks through working with iAwake Technologies (on their website)—which I talked about here: Stealing Flow: Using Audio Brainwave Technology for Writing and Art, with Douglas Prater.
Javi used to work with iAwake, but looks now to be working on his own projects: http://www.theel.io/ (beautiful website, btw, which I’m just now seeing for the the first time.)
Meanwhile, Reasonance is apparently no longer available: Reasonance Discontinued - iAwake Technologies
I understand that ‘Reasonance’ was a collaboration with Lynneclaire, so she may know its fate!