This is the free version. On the GUITAR NOTES SECTION you can click on the strings and frets of the Guitar to see the corresponding note on the staff, its name and its pitch. It has exercises so you can practice recognizing the notes of the Guitar: Exercises without a time limit to answer - Basic Level Exercises with time limit to answer - Intermediate Level After working this exercises you will be able to see a note on the staff and locate it´s position on the fretboard and you will be able