Give your old 12 or 15 bar Oscar Schmidt a face lift, with this 21 bar conversion kit.
You'll receive a complete kit, with our easy to follow instructions for installation. If you can use a square, a drill and a screwdriver, you can do the job.
Shown is a conversion using a three bar change, sold separately, for utilizing the Bm, F#m and E.
The kit comes with the standard Oscar Schmidt chords: 
Majors - Ab, Eb, Bb, F, C, G, D & A  
Minors - Cm, Gm, Dm, Am, & Em
Sevens - Bb7, F7, C7, G7, D7, A7, E7, & B7
For possible layouts, go here to see the chart "Chord Bar Layouts": 
https://daigleharp.com/howtocorner.html