Chord Book has many features, the most immediately useful of which for learners is an online tuner. Here you can click R (for repeat) for each string and hear the note for as long as you need.

In addition to standard tuning, it also features 7 altered tunings and the option to create your own by altering the virtual pegs. At any point, you can click strum to hear how your creation will sound.

Other features include...

• chords,
  
• scales and
  
• some backing tracks for jamming.
  

Note: the virtual guitar neck can be reoriented for left-hand players.

From the home page, you can also access some video lessons.

Go to http://www.chordbook.com/index.php , to find out more for yourself.