@Steveh Thanks for that. But there are easier ways:https://www.ekips.org/tools/guitar/fretfind2d/ or  Stewmacs fret calculator https://www.stewmac.com/fret-calculator/ TLC Guitargoods in Holland: https://tlcguitargoods.com/en/howto-fret-calculator I am sure there a lot of other online resources that can do the exact same thing.It’s nice to have that…   Read more»