This reminds me of Motherboard's short documentary of Andy Cavatorta, who also made a magnetically driven harp. https://www.youtube.com/watch?v=uSkIyocJNTc His technique is more 'rustic' than the studies linked here.
After listening to the two videos on the site I don't think this is going to resonate (ahem) well with pianists. The sound, compared to a conventional piano sound is very different...