This is the free version. It includes: GUITAR NOTES SECTION on which you can click on any string and fret on the virtual guitar fretboard to see the corresponding note on the staff, its name and its pitch. This section includes exercises on which notes appear on the staff and you have to click on the string and the fret corresponding to each particular note. This helps on being able to see a written note and relate it with the guitar fretboard or seeing an specific fretboard position and know