Baroque Violin plain gut string Calculator

This program is designed to calculate historically correct string diameters on violins, violas, cellos, or any other instruments tuned in 5th, which use plain gut strings at an equal tension. The program performs calculation for any given historical pitch standard, any string length and any tension in Kg. It is written in PHP combined with HTML, and can be completely integrated with a look-and-feel of your website. Easy to install.