Tuner

Step 1. Connect to the guitar. More info: Connecting to a guitar

Step 2. Press the TUNER button appearing on the start screen. The Tuner is also available in GUITAR EDITING by pressing the tuning fork icon on the Action Bar. More info: Guitar editing

Step 3. Pluck a string and tune it until the bar at the bottom disappears, or the Cent value became close to 0.