PitchPerfect is a highly accurate professional guitar tuner with a very simple to use interface on your Mac. PitchPerfect eliminates the need to tune an instrument to some kind of conventional tuning. Instead, PitchPerfect can automatically detect whatever note you are playing. This means you are not constrained by standard tunings, or even well known alternative tunings. You can simply tune your strings quickly and easily to any note you want. Tune to absolutely any note you want. Highly accurate pitch detection. Simple and intuitive interface. Tune your guitar through any sound input or microphone. Excellent tool for checking fret board intonation.