[stumped]

thats exactly where i was coming from initially. all i need is a keyboard with all but 2 keys removed and those enlarged/

but then i remembered making my own foot switches back in the day for guitar amp and keyboards, and by the time you source 2 robust stomp switches + figure out how to make a box to mount them in, and buy the plugs and cables... you are close to the cost of a perbuilt one.

so i shall try the LEKATO bluetooth one from amazon , I already have that make of wireless elec guitar gadget pair. in theory i can use it with windows PC and android tablet with the same content, as both do bluetooth

i may start a new thread for - how to organise sheet music/ books / images etc in calibre, accepting that any supporting audio/ video educational materials are best stored elsewhere