Midi harp info needed

[dmcevers@xxxxxxxxxxxxxx (Dan McEvers)]

A friend who knows much more about harps than I wants to connect with
whomever has information on the development of midi harmonicas.

He got the number of Ron Schille, but has not been able to connect.
I haven't seen anything posted about midi harps yet, but I'm interested
also.  Has anyone heard anything about an affordable version same?

Any information/leads will be appreciated.
Thanks.