it is a pleasure to read your work. Truly inspiring.
In our IEEE paper on the lambdoma matrix you made a brief reference to acoustic vibratory devices.
I recently met an autistic girl who responded to vibrations of instruments ie drums and piano quite well.
I envision a suit or a series of wireless vibratory devices that receive signals generated by some audio device (synths, lambdoma keyboard, the voice (+harmonics)).
This suit would allow her to feel the music that someone is chanting/toning or playing.
What do you know about acoustic vibratory devices?