I'm about to put line markers on my fretless bass with a black permanent marker. I have been practising with car pinstripe tape, but I took it off. It sounds terrible. And the positions weren't precise enough. I had to correct a bit sometimes by bending the string. The bass has a rosewood fingerboard with an epoxy or polyurethane finish, so eventually the markers will wear off, which is exactly what I want. I don't want to rely on fretlines forever. So my question is: how do I calculate or otherwise obtain a list of fret marker postions for a 34" fretless bass? Does anyone have a link? Or a ready made table? Thanks!