I am getting to grips with the code however, can someone enlighten me on the last section of this example string> EVENT_BUTTON id=1 type=NoteOn key=36 lcd_pos=1:1:1 label="Button #%3i: %3d"    what is this section referencing/meaning?   #%3i: %3d so when i look at this i see (EVENT_BUTTON id=1)   the button id is 1 this is the first button on D0 (type=NoteOn key=36)     the midi event it is producing is a note on key value 36 (lcd_pos=1:1:1)   it is shown on lcd 1, li