"Godfather" must mean something different in Hungarian. Liszt was writing for this version of the santur/yangqin/salterio/dulcimer in 1876. For actual hammering inside a piano, see Stephen Scott's ensemble (?vid=41236).
As far as the "godfather" part, the only guy that compares to Ion Miu on cimbalom is Tony Iordache. Both relatively modern. I suppose much like you could sort of say James Brown is godfather of soul. But it's interesting Liszt wrote for this type of thing. The first song he plays is a very old Hungarian song, no one seems to know the real name or who wrote it. Then he plays a bit of Flight of the Bumblebee. Anyway, thanks for pointing out the Stephen Scott thing.