(Chord Buddy). As soon as the ChordBuddy is properly attached to your acoustic or electric guitar, you will be able to make music instantly. This comprehensive package features the complete learning system: a ChordBuddy device, an instruction book, a color-coded songbook with 60 songs, and DVD so you have everything you need to start playing right away! The ChordBuddy is in the key of "G" and makes the "G" "C" "D" and "Em" chords. As seen on Shark Tank !