fretscale finds fret distances from the nut for stringed musical instruments based on scale length/# frets/decimal accuracy. It can output with/without a heading and with/without the remaining scale distance after each fret.
http://freshmeat.net/projects/fretscale/?topic_id=234%2C98%2C901
Fretscale是弦乐器上的长度计算器(通过计算长度来分析音色)