Extended Range Dulcimer
Instruments- discuss specific features, luthiers, instrument problems & questions
Another factor when making the fretboard longer and longer is that, depending on what notes you want to tune the strings to, you will have to choose string gauges that will enable you to tune to those notes on that length of fretboard. The trick is that although you'll have a range of choices by choosing various gauges, the choices are not unlimited as to how heavy(low) and how thin(high) you can go for a particular length of fretboard and choice of open string note. You can't for example tune to a dulcimer high D on a fretboard that is 35" long... the required string would be so thin it would snap under tension long before being tuned to high d. The opposite is true as well (trying to tune to very low notes on a very short fretboard... the required string would be impossibly fat and slack).

 The only thing I forgot to do was to put a little bit of graphite in each slot, but I can do that anytime. I want to thank all of you for the help you gave me with this. If I have any other questions or issues with my dulcimers I know where to come!