This handy, compact "slide rule" for the violin shows you every major chord and scale up the neck. Color coded dots outline each note of the major triad; clear dots show you the notes of the scale. Helps you transpose from one key to another, and (by using the simple theory rules printed on the back) how to modify the major chord to make minor, augmented, diminished and seventh chords. For this version the slide also shows finger used and postion. A separate, skinny slide helps you find fingerings in higher postions. Good for players who want to learn the neck better and for teachers looking for a clear visual aid for their students. Only 5" x 11" and less than 1/8" thick.