Chord Buddy Guitar Learning System with Clip-on Chromatic Tuner Start playing from the minute you attach the Chord Buddy to your guitar. Includes a True Tune TT-05 chromatic tuner! Latest Model with updated design. Comes with Song book containing either 60 or 100 songs. Extremely quick progression with a proven, effective, all-in-one system, suitable for all ages. Works on acoustic and electric Guitars and helps you make the C,D,G & E minor Chords. Included lesson plan and companion DVD will have you playing popular songs in no time. The Chord Buddy works on all standard dreadnaught, full-size, 3/4 and 5/8-sized acoustic and electric guitars with average to low string height and a neck width of no less than 1 1/2" and no more than 1 7/8".