Guitar Tuner v2.0. can help you to tune your instrument. By ear Guitar Tuner will play one sound for each string, you just have to reproduce the same sound on your instrument. Using the digital tuner. If your computer can record the sound of your guitar (with a microphone or a direct cable), Guitar Tuner can show you graphically the distanbetween the good note and the note and the note you are playing. Version 2.02 may include unspecified updates, enhancements, or bug fixes.