Riversong Stylist-CS (fanned frets) Acoustic GuitarDescription n our years of making Graduated Scale Guitars, we had always fanned the nut and the Bridge. One Day, I was working on guitars and realized that I could get the same ergonomic fan without the excessive scale change by fanning the nut and using the bridge as the neutral point. After building many prototypes, we developed the California Scale. A 25. 5 25 scale length guitar that would normally be 26 25 fan. This has other benefits over just