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Guitar Tuner is a hands-free tuner for your Macintosh, just play into the Microphone. It out-performs hardware tuners sold in music stores.
This program works by "listening" through your Microphone. Because your Mac may support more than one input source (Microphone, Line Input, CD Player, etc) you may need to choose one. From the Microphone Menu, select "Configure..." to select an input source.
GuitarTuner-4-0-Folder.sit (108.77 KiB / 111.38 KB)
Guitar Tuner v4.0 (1999) / compressed w/ Stuffit
Mac OS 7.x - Mac OS 9.2.2
Emulating this? It should run fine under: Basilisk II