Tuna Pitch

Connect a string instrument to your mac and tune it by comparing the playing signal to the selected preset analyzing the performance. The program features an option to set each or all of six strings to any note and control the input via the keyboard.

Tuna Pitch is a free tool to make sure you always hit the right note!
Tuna Pitch helps you tune your guitar (or any similar instrument), with 5 built-in presets, and the option to set all six strings to any note. Also, with the standard EADGBE tuning, there are Drop D, Drop C, Open G, and Open D tuning presets. It features keyboard control, reference tones, a big, high-contrast, easy to read display which can be resized to fill the screen or made small to be unintrusive and it requires minimum CPU to get its work done...