[HELP] Midi button LED control code.

It’s a 16 button midi controller to play notes in a DAW and I would like LEDs to be on all the time and flash/off when one of the 16 buttons are pressed.
I’ve attached a midi fighter which has light up buttons and then my concept is to have a band of light in the middle.
https://flic.kr/p/276wfN7
https://flic.kr/p/Hvwp8D