Which fingers to use?As with everything else in this universe, it depends. Meanwhile read through the threads in this forum and see if anything helps.As for hand size, have a look here:https://www.pianoforum.net/cgi-bin/yabb/YaBB.cgi?board=perf;action=display;num=1078232341https://www.pianoforum.net/cgi-bin/yabb/YaBB.cgi?board=perf;action=display;num=1043539957Best wishes,Bernhard.