What is the best recording microphone for getting guitar music into a Macintosh computer?
See This “How to” on Apple’s website. You’ll need an adapter to connect the 1/4-inch plug on your guitar cable to the small 1/8-inch audio input jack on your computer, and a pair of headphones to monitor the sound as you play. You may need to go through a pre amp, but you may already have one. Sources: http://www.apple.