This achievement is simple if you play the song I have created in GHTunes called "000". It is a simple song with 2 open bass notes and the rest being guitar with red & green chords. You will need to play this on expert and if you 100% it you will get a score that ends in 000. You will need to Guitar Controllers for this achievement. After the song has finished you will have to wait a little bit for it to finish as GHTracks have to be a minimum of 20 seconds long to be uploaded. This track is designed to be playable by one person.