I am working on a school project and this is my first time using an arduino and I have zero code experience. My project involve make a wall tuner for a guitar. I basically want individual different el wire to light up when the proper note is hit, and then a separate RGB LED to light up red or blue, depending on if the note is sharp or flat. I have researched and researched and still feel completely lost.....I have found Goertzel's algorithm, but it looks like a foreign language to me and I do not know what to do with it. Any and all help would be greatly appreciated.