Velocity question

Hello to evrey everyone !

I do not understand ,if i made 4 layers of Velocity record ( 10,40,70,127 )for example
If the midi message comes with Velocity value of (35) what sample will be played the 10 or 40 vel ?

thanks

do you have velocity working , do you ha 1 file with 4 layers or you have 4 files with difrent "pitch"