Make sure you can hear your guitar. If necessary, click Setup in the upper-right corner of the lesson window and choose the input source for your guitar.

Click Tuner in the upper-right part of the window.

The tuner appears in the center of the window.

Click one of the strings on the animated fretboard to tune that string, and follow the instructions at the bottom of the tuner.

The note name appears in the center of the tuner. If the note is out of tune, the note name appears red, and bars on either side indicate whether the note is flat or sharp.

If the lesson uses an alternative tuning, the notes of the tuning are shown above the tuner.

Adjust the tuning peg for the string on your guitar, continuing to watch the tuner.

When the note is in tune, the note name appears blue, and no bars on the side are lit.

When you’re finished tuning, click Tuner again to close the tuner.