ChordBuddy is the easiest and most effective guitar learning system available! As soon as the ChordBuddy is properly attached to your acoustic or electric guitar, you will be making music! Within a few weeks, you'll begin removing some of the tabs and making the chords on your own. In two months, you'll be able to play the guitar with no ChordBuddy at all. Our system works on acoustic and electric guitars and helps you make the C, D, G & E minor chords. Package includes: ChordBuddy Instruction Book Companion DVD ChordBuddy songbook with over 100 songs Each package includes the ChordBuddy as well as instructions on how to properly attach the device to your guitar. The lesson plan and companion DVD will have you playing popular songs in no time. The ChordBuddy songbook includes over 100 songs and shows you how to play them with and without the ChordBuddy. The color-coded ChordBuddy songbook includes many hit songs from the past and present including hits from country, bluegrass, gospel and rock-n-roll genres. Be sure to select the fit that works with your guitar. ChordBuddy works on all full-size electric and acoustic guitars, full size classical guitars, and full size guitars that are designed for left adn right handed players. Just make sure you pick the right fit! Measure across the neck at the nut (the white bar between the frets and the tuning pegs), it should be around 1 3 ? (1 ½" minimum and 1 7/8" maximum) and from the nut to the 3rd fret should be approximately 4?ChordBuddy works with both left and right handed guitars! If you have a classical guitar (any guitar with a neck width of more than 1 7/8?) you'll need to make sure to select "Classical" from the drop down. The "right" and "left" handed ChordBuddy will work with full size, 3/4 size and 5/8 size guitars.