var suit_array = ['00000000000', '00000000000', '00000000000', '00000000000'];
foreach(data_from_midi as event) {
    var suit_current_state = suit_array[event.suit];
    var suit_new_state = suit_current_state.setBit(event.neon_number, event.state_on_off);
    time_array[event.time][event.suit] = suit_new_state ;
    suit_array[event.suit] = suit_new_state ;
}

return time_array;