1. Play an open-string note using the string you are tuning. The screen will indicate the note name that is closest to the pitch of the string you play.
2. Continue tuning until the pitch name of the string you are tuning appears in the display.
3. When the guide is to the left of the box the string is flat. When the guide is to the right, the string is sharp. The string is tuned when the guide is centered in the box.
4. Repeat steps 1-3 to tune each of the strings.