Overall Comments
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This is a moveable cardboard and clear plastic sleeve device that locates all of the notes on the neck, and all of the major, minor, 7ths, augmented and diminished chords. It's a simple slide rule (those of us eligible for AARP know what a slide rule is) type device that has punched holes to fit in your 3-ring songbook binder. No more pages of chord forms and charts. Very easy to use, and you learn the neck and a little bit of music theory along the way. It's a little hard to find on the JDMC site, but once you get there, there's a link to a video demonstration. |