Editors Note
This software provides a 12-note chromatic scale between A0(27.5Hz) to C8(4186.0Hz) ranges. Supports temperaments of Equal, Kellner, Kirnberger III, Meantone, Pythagorean etc., You can have an accuracy level of + or -1 cent tunings and calibration level of 349.0 - 499.9Hz(0.1Hz steps). Here the input volume can be adjusted and the tunings can be made with customized settings. Serves as a cool tool for tuning sound input from built-in microphone, line-in and iSight.